Differential (Click to cross reference) abdominal cramps abdominal distention abdominal mass abdominal tenderness abducens nerve paralysis abducens nerve paralysis, bilateral abducens nerve paralysis, children abortion, spontaneous abscess, brainstem abscess, cerebellum abscess, intracerebral abscess, intracerebral, multiple abscess, intracerebral, recurrent abscess, intracerebral, treatment of abscess, intracerebral, tuberculous abscess, intracranial abscess, intracranial-fungal abscess, sphenoid sinus abulia acetylcholine receptor acetylcholine receptor antibody aciduria acoustic nerve acoustic neurinoma acquired immunodeficiency syndrome acquired immunodeficiency syndrome defining illness acquired immunodeficiency syndrome dementia complex acquired immunodeficiency syndrome dementia complex, pathogenesis acquired immunodeficiency syndrome myelopathy acquired immunodeficiency syndrome, heralded by neurologic invol ACTH acute cerebellar ataxia acute disseminated encephalomyelitis 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of childhood alternative medicine alveolar hypoventilation Alzheimer type II astrocytosis Alzheimer's disease Alzheimer's disease, treatment of amaurosis fugax amaurosis fugax, alternating amaurosis fugax, unilateral vs.bilateral amblyopia, toxic amenorrhea aminoglycoside amiodarone amitriptyline ammonia amnesia amnesia, anterograde AMPA receptor antibodies AMPA receptors amphetamines amphetamines, dyskinesia associated with amphiphysin antibodies amphotericin B ampicillin amygdala amyloid angiopathy, cerebral amyloid angiopathy, cerebral, inflammatory type amyloid angiopathy, cerebral, tumefactive amyloid beta protein amyloid beta-related angiitis amyloid deposition amyloidosis amyotrophic lateral sclerosis amyotrophic lateral sclerosis, differential diagnosis amyotrophic lateral sclerosis, guamian type of amyotrophic lateral sclerosis, misdiagnosis amyotrophic lateral sclerosis, treatment of amyotrophic lateral sclerosis-like syndrome ANA anal cancer analgesic ANA-negative systemic 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anorexia anorexia nervosa anorgasmia anosmia anoxia anterior horn cell disease anterior spinal artery infarction anti basal ganglia antibodies anti citrullinated antibody anti DNA agent anti GQ1b IgG antibody anti HMGCR antibody anti Hu antibody anti IgLON5 anti JC virus antibodies anti Ku antibody anti MAG antibodies anti Ri antibody anti Ro antibody anti Yo antibody antiarrhythmic drugs antibiotic prophylaxis antibiotics antibiotics, neurologic complications with antibodies to voltage-gated calcium channels anticholinergic drugs anticholinergic drugs, side effects of anticholinesterase anticoagulant, reversal of anticoagulant, treatment anticoagulant, treatment in CVD anticonvulsants anticonvulsants, bioavailability anticonvulsants, blood level determination of anticonvulsants, cognitive function with anticonvulsants, compliance anticonvulsants, discontinuation in seizure-free epileptics anticonvulsants, effectiveness anticonvulsants, pharmacokinetics anticonvulsants, subtherapeutic anticonvulsants, untoward effects of antidepressant anti-dopamine 2 receptor antibody antiemetic antihypertensive antimetabolite antimicrosomal antibodies anti-myeloperoxidase antineutrophil cytoplasmic autoantibodies antiparasitic therapy antiphospholipid antibodies antiphospholipid antibody syndrome antiretinal antibodies antistriational muscle antibody antithymocyte antiserum antithyroid antibodies antiviral agents anxiety anxiolytic agents aorta, sheathing aortic arch stenosis aortic arch study aortic valve, insufficiency aortitis aphasia aphasia, progressive apnea apolipoprotein E apraxia apraxia of eye movements apraxia, constructional arachnoiditis arbovirus area postrema area postrema syndrome areflexia Arizona arm weakness arrhythmia, cardiac artane arterial dissection arterial dissection, aorta arterial dissection, carotid arterial dissection, vertebral arteriopathy arteritic anterior ischemic optic neuropathy arteritides arteritis, temporal arteritis, temporal, intracranial involvement with arteritis, temporal, occult arteritis, temporal, recurrent artery of Adamkiewicz arthralgia arthritis artificial intelligence arylsulfatase A asparginase aspartate aminotransferase aspergillosis aspiration aspirin asplenia astereognosis asterixis asthma astrocytoma asymptomatic ataxia ataxia telangiectasia ataxia, cerebellar ataxia, progressive ataxia, sensory ataxia, truncal ataxic gait atezolizumab athetosis atonic bladder atrial fibrillation atrioventricular block atropine atropine psychosis atypical audiogram auditory and vestibular pathways auditory evoked brainstem potentials auditory evoked potentials autoantibodies autoimmune basal ganglia encephalitis autoimmune cerebellar ataxia autoimmune disease autoimmune encephalopathy autoimmune epilepsy autoimmune GFAP astrocytopathy autoimmune meningitis automobile accidents autonomic dysfunction autonomic dysfunction, acute autonomic neuropathy axonal degeneration axonal injury azathioprine azidodeoxythymidine B 12 deficiency B cell lymphocytes B cell lymphoma babesiosis Babinski sign back surgery baclofen bacteremia bacterial infection bacterial infection, CNS Balint's syndrome basal cistern basal ganglia basal ganglia, hemorrhage basal ganglia, hemorrhage, bilateral basal ganglia, infarction basal ganglia, lesion of basal ganglia, lesion, bilateral basilar artery Bassen-Kornzweig syndrome Beau's lines behavior, combative behavioral disorder behavioral disorder, acute Behcet's syndrome belladonna Bell's phenomenon benign sexual headache benzodiazepine beta adrenergic blocker beta-D-glucon bevacizumab bias binge drinking biologic markers black turbinate sign blacks bladder dysfunction blastomycosis bleomycin blepharospasm blindness blindness, monocular blindness, sudden blood brain barrier blood cultures blood dyscrasias, neurologic findings with blood pressure blood transfusion bone age bone density bone marrow biopsy bone marrow suppression bone marrow transplantation bone pain bone scanning boomerang sign Borrelia miyamotoi infection bortezomib botulinum toxin botulinum toxin, complications of brachial neuritis brachial plexus brachial plexus injury brachial plexus neuropathy brachium pontis bradycardia brain atrophy brain biopsy brain biopsy, complications of brain biopsy, false negative brain biopsy, indication brain biopsy, negative brain biopsy, stereotaxic brain fog brain natriuretic peptide brain purpura brain scan brain scan, abnormal brain scan, false negative brainstem brainstem, dysfunction brainstem, glioma brainstem, glioma in children brainstem, infarction of brainstem, lesion of brainstem, neoplasms of Brazil breast feeding brentuximab Broca's aphasia bromocriptine Brown Sequard syndrome brucellosis brucellosis, nervous system involvement with bruit bruit, supraclavicular budesonide bulbar palsy burning feet burning feet, differential diagnosis of burning mouth burning mouth syndrome burning paresthesia burr hole bursitis burst suppression pattern, electroencephalogram buspirone busulfan butyrophenone cachexia cafe au lait spots caffeine calcification, intracranial calcification, muscle calcium antagonist calcium antagonist, side effects of calcium channel dysfunction calcium pyrophosphate dihydrate deposition disease calculations calf hypertrophy California Call-Fleming syndrome calmodulin kinase-like vesicle-associated protein camphor cancer associated hypercoagulation cancer associated myopathy cancer of colon cancer, cerebrovascular accident complicating patients with cancer, unknown origin candida albicans cannabinoids cannabinoids, synthetic capecitabine capsaicin captopril CAR syndrome carbamazepine carbamazepine, controlled release carbamazepine, toxicity carbenicillin carbenoxolone carbon monoxide poisoning carcinoembryonic antigen carcinoma carcinoma of bladder carcinoma of breast carcinoma of lung carcinoma of ovary carcinoma of pancreas carcinoma of stomach carcinoma of testis carcinoma of thyroid carcinoma of unknown origin carcinoma of uterus carcinoma, multiple cardiac arrest cardiac arrest and resuscitation cardiac surgery cardiac surgery, neurologic complications with cardiac transplantation cardiomegaly cardiomyopathy cardiotoxicity cardiovascular disease caries carmofur carmustine carotid angiogram carotid artery disease carotid artery occlusion, intracranial carotid artery occlusion, neck carotid artery stenosis carotid artery, enlarged external diameter carotid sinus pressure carpal tunnel syndrome carphology carpo-pedal spasm case studies Castleman's disease CAT scan CAT scan, abdomen CAT scan, abnormal CAT scan, abscess, cerebral CAT scan, angiography CAT scan, brain scan compared to CAT scan, brain tumors CAT scan, cardiac, ultrafast CAT scan, chest CAT scan, chest, tree in bud opacities CAT scan, contrast enhanced CAT scan, contrast enhanced, delayed CAT scan, contrast enhanced, double dose CAT scan, contrast enhanced, subepend. CAT scan, delta sign, empty CAT scan, demyelinating disease CAT scan, disappearing lesion on CAT scan, emission CAT scan, emission, abnormal CAT scan, false negative CAT scan, gray matter enhancement CAT scan, hyperattenuation CAT scan, mass effect on CAT scan, muscle CAT scan, myelogram with CAT scan, orbits CAT scan, pelvis CAT scan, ring sign CAT scan, serial CAT scan, spinal cord CAT scan, spine CAT scan, target sign cataracts cataracts, congenital catatonia catatonia, lethal cauda equina cauda equina, enhancement cauda equina, lesion of caudate nucleus, lesion of caudate nucleus, lesion of, bilateral cavernous sinus cavernous sinus, lesion of cavernous sinus, syndrome cavernous sinus, thrombosis CD19-directed chimeric antigen receptor T-cell therapy CD4 counts cecum perforation cefotaxime ceftriaxone celiac disease, adult cellulitis central nervous system, infection of central nervous system, infection, cancer patient central pontine myelinolysis central retinal artery occlusion central serous chorioretinitis central venous catheter centrum semiovale cephalosporins cerebellar ataxia, children cerebellar ataxia, hereditary cerebellar atrophy, secondary cerebellar cognitive affective syndrome cerebellar degeneration cerebellar edema cerebellar infarction cerebellar infarction, bilateral cerebellar lesion cerebellar vermis cerebellitis cerebellum cerebellum, disease of cerebral arteries cerebral artery, encasement cerebral autosomal dominate arteriopathy with subcortical infarction and leukoencephalopathy cerebral blood flow cerebral cortex cerebral cortical atrophy cerebral death cerebral edema cerebral edema, cytotoxic cerebral edema, origin and treatment cerebral edema, vasogenic cerebral embolism cerebral embolism, multiple cerebral hypersensitivity, delayed cerebral infarction cerebral infarction, hemorrhagic cerebral infarction, septic cerebral infarction, small, deep cerebral infarction, subcortical cerebral ischemia cerebral palsy cerebral tumor-like 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cogwheel rigidty coinfection colchicine cold hands sign cold intolerance collagen vascular disease collagenous sprue collapsin response mediator protein 5 IgG Collier's sign colloid cyst color desaturation color vision color vision, impaired coma coma, causes of coma, episodic coma, prognosis of common variable immunodeficiency comorbidities compartment syndrome compartment syndrome, gluteal compazine complement complement, serum compliance complicated migraine complications compounded drugs compression fracture compression neuropathy computers, neurologic diagnosis and concentration, impaired concentric sclerosis conduction block confabulation confusion confusional state, acute congenital heart disease congenital malformation congenital malformation, non CNS congenital myopathy congestive heart failure conjugate gaze, forced conjunctival engorgement conjunctival injection conjunctivitis consanguinity constipation contactin associated protein like 2 antibodies contractures, joint contraindications contrast agents, neurotoxicity of controversies in neurology conus medullaris, lesion of conversion reaction Coombs test, positive cop 1 cornea, abnormal cornea, opacification in infancy-causes of cornea, opacity of corneal reflex, abnormal corneal ulceration coronavirus corpus callosum corpus callosum, infarction of corpus callosum, lesion of corpus callosum, neoplasm of cortical blindness cortical blindness, transient cortical deafness cortical hemorrhage cortisol, elevated cost cost effectiveness cough coumarin COVID-19 cranial nerve enhancement cranial nerve enlargement cranial nerve palsies cranial nerve palsies, unilateral cranial nerves cranial nerves, toxins effecting cranial neuropathy cranial neuropathy, multiple craniopharyngioma Craniosynostosis craniotomy C-reactive protein C-reactive protein, elevated creatine kinase creatine phosphokinase(CPK)elevated CREST syndrome critical care unit critical illness Crowned dens syndrome cryoglobulinemia cryopyrin-associated periodic syndrome cryptococcal antigen cryptococcal meningitis cryptococcal meningoencephalitis cryptococcoma, cerebral cryptococcosis cryptorchidism cultured skin fibroblasts Cushing's syndrome cyclophosphamide cyclosporine cyproheptidine cyst, cortical parenchyma cyst, epidermoid of CNS cyst, parenchymal cyst, porencephalic cyst, subarachnoid cysticercosis cysticercosis, cerebral cysticercosis, subarachnoid cytochrome c oxidase cytoid bodies cytokine release syndrome cytokines cytomegalic inclusion disease cytomegalovirus infection cytomegalovirus infection, congenital cytoreductive surgery cytosine arabinoside cytotoxic lesions of the corpus callosum daclizumab dantrolene sodium deafness deafness, bilateral deafness, bilateral progressive vs.unilateral acute deafness, sudden deafness, unilateral deep gray nuclei defecation degenerative diseases of CNS delay in diagnosis delirium delirium, work up for delusion dementia dementia, cerebrovascular disease causing dementia, childhood dementia, diagnostic evaluation of dementia, differential diagnosis of dementia, presenile dementia, rapidly progressive dementia, reversible dementia, subcortical dementia, treatment of demyelinating disease dental infection dental procedure, neurologic complications with dentate nuclei dentate nuclei, lesion of deprenyl depression depression, psychotic dermatitis dermatitis herpetiformis dermatomyositis dermatomyositis, childhood detoxification developmental evaluation developmental milestones, loss of developmental retardation dexterity, impaired DHE diabetes insipidus diabetes mellitus diabetes mellitus, chemical diabetic amyotrophy diabetic ophthalmoplegia diagnostic criteria dialysis diarrhea diaziquone diencephalon diet dietary supplement differential diagnosis difficulty climbing stairs diffuse infiltrative lymphocytosis syndrome DiGeorge syndrome digital subtraction angiography digitalis digitalis intoxication dihydroepiandosterone dilantin dilantin, serum level dilantin, toxicity diplegia, brachial diplopia diplopia, vertical disability rating scale, neurological disability, neurological discectomy discectomy, lumbar discitis discography disease modifying agents disorientation disseminated intravascular coagulation(DIC) disseminated vasculomyelinopathy distal muscle weakness disulfiram diuretic diurnal variation diving dizziness DNA probes docetaxel Dominican Republic donepezil dopa responsive dystonia dopamine agonist dopamine antagonist dopamine receptor, D2 down-beat nystagmus doxycycline DPPX DPPX, antibodies DPPX, antibodies, encephalitis drooling droperidol dropped head syndrome drowsiness drug abuse drug abuse, neurologic complications of drug addiction drug dependence drug holiday drug induced neurologic disorders drug induced neurologic disorders in children drug interactions drug overdose drug overdose, management of drug resistant bacteria drug withdrawal Dupuytren's contractures dura, thickened dural arteriovenous malformation dural sinus thrombosis duvalumab dying dysarthria dysdiadochokinesia dysequilibrium syndrome dysgeusia dyskinesia dyskinesia, buccal lingual facial dyskinesia, drug induced dyskinesia, facial dyslexia dysmetria dysmorphic dysostosis multiplex dysphagia dysphasia dyspnea dysproteinemia dysthyroid ocularmyopathy dysthyroidism dystonia dystonia musculorum deformens dystonia, children dystonia, classification dystonia, drug induced dystonia, etiology of dystonia, evaluation of dystonia, face dystonia, focal dystonia, painful dystonia, treatment of dystonia, truncal dystonic reaction, acute dystrophic calcification DYT1 mutation ear, pain in ear, red ecchymoses Echinacea ECHO virus echocardiogram echocardiogram, transesophageal echocardiogram, transesophageal, false negative echocardiogram, transthoracic, false negative eclampsia eclampsia, postpartum ecstasy ectopic pinealoma eculizumab eczema edema, laryngeal edema, leg edema, palate edema, pedal edema, periorbital efficacy 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endovascular therapy energy drink entrapment neuropathy enuresis enzyme treatment enzyme, defect enzyme, induction enzyme, muscle disease enzyme, serum eosinophilia eosinophilia-myalgia syndrome eosinophilic fasciitis eosinophilic granulomatosis with polyangiitis ependymitis ependymoma ephedrine epidemic epidemiology of neurology epidermoid epidural blood patch epidural steroid epilepsia partialis continua episcleritis episodic disorders episodic neurologic deficits episodic unconsciousness epistaxis epsilon-aminocaproic acid(E.A.C.A.) Epstein-Barr virus Epstein-Barr virus, negative erbulozole Erdheim-Chester disease erectile dysfunction erection ergonovine ergotamine ergotism erythema nodosum erythromelalgia erythromycin erythropoietin erythropoietin treatment escherichia coli esophageal reflux etanercept ethics in neurology everolimus evidence-based research evoked potentials exercise exercise intolerance exercise-induced vascular symptoms exophthalmus Exserohilum rostratum extension-flexion injury of cervical spine external capsule extralimbic encephalitis extraocular muscle enlargement extraocular muscle lesion extrapyramidal eye closure eye movement, disorders of eye movement, painful eye, pain in face, numbness of facial appearance, abnormal facial nerve facial nerve palsy facial nerve palsy, bilateral facial nerve palsy, causes of facial nerve palsy, prognosis of facial nerve palsy, recurrent facial nerve palsy, treatment of facial pain facial swelling facial tenderness facial weakness facial weakness, bilateral faciobrachial dystonic seizure failed medical management falling false negative false negative VDRL false positive famciclovir familial farmer fasciculation fasciotomy fasting fatigue femoral neuropathy fentanyl ferritinemia fertility fetal death fever fever of unknown origin fibrillations fibrinolytic agents fibrinolytic agents, complications fibrinolytic agents, intra-arterial local infusion fine motor function, impaired finger nose finger test fingernails, white fingolimod fistula, arterio-venous, dural fistula, arterio-venous, dural, spinal flaccid paralysis floaters fluconazole fluctuate fludarabine flu-like illness flunarizine fluorescein angiography fluorescent treponema antibody absorption/false positive fluoroquinolones fluorouracil fluoxetine flush syndrome folic acid follicle stimulating hormone follow commands fontanel, bulging food-borne infection foot drop foot drop, bilateral foreign body reaction fornix, lesion of foscarnet fourth ventricle, floor fracture, long bone fracture, pathologic fried egg appearance frontal lobe, behavior with disease of frontal lobe, lesion of frontal lobe, pathologic signs of frozen section fucosidosis fumarate fundus, abnormality of funduscopic exam fungal infection fungal infection, CNS fungal infection, CNS, treatment of furosemide F-wave response gabapentin gadolinium gag reflex, depressed gait disorder gait, spastic galcanezumab gallium scan gamma amino butyric acid receptor antibody gamma butyrolactone gamma hydroxybutyric acid gammaglobulin therapy, intravenous ganciclovir ganglioglioma ganglionitis gangliosides gangliosidosis GM1 gangliosidosis GM2 gardener gastric partitioning gastric surgery gastrointestinal bleeding gastrointestinal disease, neurologic complications gastrointestinal perforation gastroparesis gaze palsy gaze palsy, horizontal gaze palsy, supranuclear gaze palsy, vertical gemcitabine gemfibrozil gender gene gene mutation gene therapy genetic counselling genetic diagnosis genetic diagnosis, prenatal genetic linkage genetic neurologic disorders genital ulcerations gentamicin genu of corpus callosum geographic location Gerstmann syndrome gests antagoniste GFAP-IgG Ghana Gilles de la Tourette syndrome ginkgo biloba ginseng glabellar sign glare, light-induced Glasgow coma score glaucoma glaucoma, acute Gliadel Wafers glioblastoma multiforme(astrocytoma Gr.III) glioblatoma multiforme (astrocytoma Gr.III), etiology glioma glioma, low-grade gliomatosis cerebri globus pallidus globus pallidus, lesion of globus pallidus, lesion of, bilateral glossitis glucose tolerance test, abnormal GLUT1 deficiency syndrome glutamic acid decarboxylase, antibody glycerol glycine receptor antibodies glycoprotein GM antigen test GM1 ganglioside GM1 ganglioside antibodies Good syndrome gout Gowers maneuver gram negative rod gram positive cocci gram positive rod granuloma, eosinophilic granuloma, pulmonary granulomatosis with polyangiitis granulomatosis, allergic granulomatous disease granulomatous hypophysitis grasp reflex Graves ophthalmopathy gray hair gray matter groaning growth hormone growth retardation guanidine Guillain Barre syndrome Guillain Barre syndrome, differential diagnosis of Guillain Barre syndrome, infantile and childhood form Guillain Barre syndrome, steroid treatment in gumma gynecomastia gyrus, abnormal hair, darkening of Hallervorden Spatz disease hallucination hallucination, auditory hallucination, olfactory hallucination, visual haloperidol hamster hand numbness hand pain hand swelling hand weakness Hand-Schuller-Christian disease hangmans fracture head injury head injury, management of head injury, pediatric head injury, severe head lag head nodding headache headache, bifrontal headache, bitemporal headache, children headache, chronic headache, chronic daily headache, continuous headache, drug induced headache, elderly headache, emergency headache, episodic headache, evaluation of headache, frontal headache, intermittent headache, occipital headache, positional headache, precipitating factors headache, progressive headache, prophylaxis headache, rebound headache, recurrent headache, severe headache, sudden onset of headache, temporal headache, throbbing headache, thunderclap headache, treatment of headache, unilateral headache, vascular headache, worst of life hearing hearing loss hearing loss, bilateral hearing loss, sudden, bilateral hearing loss, sudden, unilateral heart block heart murmur heart valve surgery heart valve, prosthetic heart valve, repair heavy metal intoxication HELLP syndrome helminthic infection of CNS hemangioblastoma hematoma, epidural-spinal hematomyelia hematuria, microscopic hemianopia hemianopia, homonymous hemiballismus hemichorea hemimyoclonic jerks hemiparesis hemiparesis, transient hemiplegia hemiplegia, progressive hemolytic-uremic syndrome hemophagocytic lymphohistiocytosis hemophagocytic lymphohistiocytosis, cerebromeningeal hemophagocytosis hemophilus influenza hemoptysis hemorrhage, putamenal hemorrhage, thalamic hemorrhagic diathesis hemosiderosis of CNS, superficial hemosiderosis, subarachnoid heparin heparin, low-molecular-weight heparin, subcutaneous hepatic encephalopathy hepatic encephalopathy, acute hepatic failure hepatitis hepatitis C virus hepatolenticular degeneration(Wilson's disease) hepatomegaly hepatosplenomegaly heralding manifestation herbs herniated disc herniated disc, cervical herniated disc, lumbar herniated disc, lumbar-conservative vs.surgical treat.of herniated disc, steroid treatment of herniation syndromes, intracranial herpes encephalitis herpes labialis herpes simplex encephalitis herpes simplex encephalitis, atypical herpes simplex encephalitis, chronic herpes simplex encephalitis, diagnosis of herpes simplex encephalitis, differential diagnosis of herpes simplex encephalitis, extra temporal herpes simplex encephalitis, prognosis of herpes simplex encephalitis, recurrent herpes simplex encephalitis, treatment of herpes simplex myelitis herpes simplex virus herpes simplex virus infection, immunosuppressed patient herpes simplex virus infection, newborn herpes simplex virus, human nervous system and herpes simplex virus, localization of herpes simplex virus, malignancy with herpes simplex virus, pathogenesis of herpes simplex virus, pathology of herpes simplex, neurocutaneous lesions in herpes virus herpes virus infection herpes zoster herpes zoster, disseminated herpes zoster, myelitis herpes zoster, ophthalmicus herpes zoster, vaccine herpes, genital hexane hiccoughs highly active antiretroviral therapy hip flexor weakness hip fracture hip pain hippocampal atrophy hippocampus hippocampus, hyperintense histamine-2 receptor blockers histiocytosis histoplasmosis HLA HMGcoA reductase inhibitors hoarseness Hodgkin's disease Hodgkin's disease, neurologic involvement with Holter monitoring homosexual hormone replacement hormone therapy Horner's syndrome hospital length of stay hospitalization H-reflex testing huffing human chorionic gonadotropin, elevated human diploid cell rabies vaccine human herpesvirus 6 human herpesvirus 8 human immunodeficiency virus type 1 human immunodeficiency virus type 1, asymptomatic human immunodeficiency virus type 1, false positive human immunodeficiency virus type 1, testing human immunodeficiency virus type 2 human papilloma virus human parechovirus human T-lymphotropic virus type I(HTLV-I) Huntington's chorea Hurler's syndrome hydatidiform mole hydrocephalus hydrocephalus, acute hydrocephalus, exvacuo hydrocephalus, non-communicating(obstructive) hydrocephalus, normal pressure hydrochlorthiazide hyperactivity hyperacusis hyperadrenalism hyperammonemic encephalopathy hyperamylasemia hyperbaric oxygen hyperbaric treatment hypercalcemia hypercoagulable state hyperekplexia hypereosinophilic syndrome(HES) hyperesthesia hyperextension injury hypergammaglobulinemia hyperglycemia hyperhidrosis hyperinsulinism hyperkalemia hyperlipidemia hypernatremia hyperparathyroidism hyperphosphatasia hyperpigmentation of skin hyperreflexia hypersensitivity reaction hypersomnia hypertension hypertension, cerebrovascular disease with hypertensive encephalopathy hyperthermia hyperthyroidism hypertonia hypertrichosis hypertriglyceridemia hypertrophic intracranial pachymeningitis hypertrophic pachymeningitis, IgG4 related disease hypertrophic spinal pachymeningitis hyperventilation hyperviscosity hypocalcemia hypocomplementemia hypofibrinogenemia hypogammaglobulinemia hypogeusia hypoglycemia hypoglycemic agent, oral hypoglycemic coma hypoglycorrhachia hypogonadism hypokalemia hyponatremia hyponatremia with cerebral disorders hypoosmolality of serum hypoparathyroidism hypophonia hypophysitis, IgG4-related hypopituitarism hypoprothrombinemia hypopyon hyporeflexia hypotension, systemic hypothalamus hypothalamus, damage to hypothalamus, disturbance of hypothalamus, lesion of hypothalamus, neoplasm of hypothermia hypothermia, causes of hypothyroidism hypotonia hypotonia, infants hypoxia hypoxic encephalopathy hypsarrhythmia iatrogenic neurologic disorders ibuprofen idiopathic idiopathic CD4+lymphopenia idiopathic cranial polyneuropathy idiopathic inflammatory myopathy idiopathic thrombocytopenic purpura ifosfamide IgG4, serum IgG4-related disease ileus, paralytic illusions imbalance imbalance, postural immune checkpoint inhibitors immune complex disease immune effector cell-associated neurotoxicity syndrome immune reconstitution inflammatory syndrome immune-related adverse events immunization, neurologic complications with immunocompetent immunodeficiency immunoelectrophoresis, serum immunofluorescence immunofluorescent exam of CSF cells immunofluorescent"band"test immunohistochemistry immunologic disease immunology and the nervous system immunomodulation immunosuppression immunosuppressive agents immunotherapy implantable cardioverter defibrillator impotence in situ hybridization inappropriate antidiuretic(A.D.H.)hormone inappropriate antidiuretic(A.D.H.)hormone, CNS involvement with inattention inborn errors of metabolism inborn errors of metabolism, screening incidence incidental finding inclusion bodies inclusion bodies, eosinophilic intranuclear inclusion bodies, intracytopasmic inclusion bodies, intranuclear inclusion body myositis incontinence, fecal India india-ink preparation, CSF indomethacin inebilizumab infantile hemiplegia infantile spasm infection infection, latent infection, recurrent infectious mononucleosis infectious mononucleosis, neurologic findings with infliximab influenza influenza A virus influenza immunization informed consent infraorbital nerve INR values insecticides insomnia insular cortex insulin insulinoma intellectual deficit intellectual deterioration intelligence quotient intelligence testing in children interferon interferon alpha interferon antibodies interferon beta 1-a interferon beta 1-b interferon inducer interferon, intrathecal interleukin 2 interleukin 6 internal carotid artery internet internuclear ophthalmoplegia interstitial pulmonary fibrosis intestinal biopsy intracardiac device intracardiac devices intracardiac electrophysiologic testing intracerebral hemorrhage intracerebral hemorrhage, bilateral intracerebral hemorrhage, causes of intracerebral hemorrhage, lobar intracerebral hemorrhage, multiple intracerebral hemorrhage, recurrent intracerebral hemorrhage, treatment of intracerebral hemorrhage, young adult intracranial hemorrhage intracranial hypertension, benign intracranial hypertension, benign, children intracranial hypotension intracranial pressure monitoring intracranial pressure monitoring, complications intracranial pressure, increased intracranial pressure, increased, treatment of intraluminal tumor intranasal medication intraocular pressure, increase intrathecal chemotherapy intrathecal pump intrathecal steroid intrathecal treatment of meningitis intrauterine intrauterine infection, viral intrauterine infection, viral of CNS intravascular volume expansion intravenous intravenous drug abuse intravenous line intraventricular antibiotic administration intraventricular catheter intraventricular chemotherapy intraventricular hemorrhage intrinsic hand muscles, wasting of iododeoxyuridine ipecac ipilimumab iris, abnormal iritis iron, serum iron, serum, elevated irritability Isaacs syndrome isoniazid Jakob-Creutzfeldt disease Janeway spots jaundice jaw claudication jaw pain JC virus JC virus cerebellar granule cell neuronopathy JC virus encephalopathy Jefferson fracture joint steroid injection Kaposi's sarcoma Kawasaki disease Kearns-Sayre syndrome keratitis keratoconjunctivitis Kernig's sign Korsakoff's psychosis Krabbe's disease kyphoscoliosis, neurologic causes of labor, complicated labyrinth, disorder of labyrinthitis labyrinthitis, acute lacrimal gland enlargement lacrimation lactic dehydrogenase(LDH) lacunar infarction laminectomy lamotrigine lateral rectus palsy lateropulsion Latin America Laurence-Moon-Bardet-Biedl syndrome L-dopa L-dopa, drug interactions with and side effects of learning disability, in children Ledderhose disease leg numbness leg spasms, painful leg swelling leg weakness, bilateral leg weakness, unilateral Legionella pneumophilia Legionnaires'disease lenticular nucleus, lesion of lenticular nucleus, lesion of, bilateral lenticulostriate arteries lenvatinib lesions too numerous to count lethargy leucine rich glioma inactivated 1 antibodies leukemia leukemia, neurologic findings assoc.with leukemia, prophylactic treatment of CNS leukocytosis leukodystrophy leukoencephalitis leukoencephalitis, acute necrotizing hemorrhagic leukoencephalopathy leukoencephalopathy, acute leukoencephalopathy, differential diagnosis leukoencephalopathy, toxic leukopenia leukostasis levamisole level of consciousness, decreased levonorgestrel Lewy body disease, diffuse Lhermitte's sign libido, decreased lid lid abnormalities lid closure, weakness of lid lag lid twitch lidocaine life expectancy limb-girdle weakness limbic encephalitis limbic system linomide lipid lowering agent lipid storage disorder of CNS lipomatosis lipomatosis, epidural lipoprotein receptor-related protein 4 liquorice listeria monocytogenes listeriosis, CNS lithium livedo reticularis liver biopsy liver disease liver function enzymes liver transplantation lomustine long bone lesion lorazepam lordosis lovastatin low back pain L-tryptophan lumbar drain lumbar puncture lumbar puncture, complications of lumbar puncture, indications for lumbar puncture, repeated lumbosacral plexopathy lumbosacral plexus lumbosacral plexus, lesion of lumbosacral plexus, neuritis lumbosacral radiculopathy lung biopsy lung transplantation lupus anticoagulant luteinizing hormone Lyme disease lymph node biopsy lymphadenopathy lymphadenopathy, axillary lymphadenopathy, cervical lymphadenopathy, hilar lymphocytic choriomeningitis lymphocytic interstitial pneumonitis lymphohistiocytosis lymphoma lymphoma involving CNS lymphoma involving CNS, prophylactic treatment lymphoma of testis lymphoma, meningeal lymphoma, ocular lymphoma, plasmablastic lymphoma, primary of CNS lymphoma, secondary of CNS lymphoma, systemic lymphomatoid granulomatosis lymphopenia lysosomal storage disease lysosomes, abnoral macrocephaly macular degeneration macular edema magnesium sulfate magnetic susceptibility malabsorption malabsorption syndrome malaise malaria malaria, cerebral malformation, CNS, congenital malignancy screen malignancy, occult malignant hyperpyrexia mandibular neuropathy mannitol marche a petits pas Marcus Gunn pupil Marfan syndrome marihuana Mary Walker phenomenon masked facies Massachusetts mastoiditis MATILDE regimen mechlorethamine meclizine medial rectus palsy median nerve, lesion of median neuropathy mediastinum, mass of medication withdrawal medulla oblongata medulla oblongata, lesion of medullary streaks medulloblastoma MEK inhibitor melanoma, malignant MELAS syndrome mellaril memory 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cerebral microaneurysm, retinal microangiopathy, brain microangiopathy, retina microcephaly microglial nodules microhemorrhage, intracerebral microinfarcts micropthalmia microscopic polyangiitis microsporidia microsurgery midbrain midbrain, infarction of midbrain, lesion of middle cerebellar peduncle middle cerebellar peduncle, lesion middle cerebellar peduncle, lesion, bilateral middle cerebral artery middle cerebral artery, occlusion of migraine migraine, pathogenesis migraine, recurrent migraine, treatment of Mikulicz's syndrome mild cognitive impairment mimics minocycline misdiagnosis misnomer missing piece sign mitochondrial disease mitoxantrone mitral valve lesion mitral valve vegetation moclobemide molecular genetics molecular markers mongolism Monkeypox infection monoamine oxidase inhibitors monoamines monoamines, brain monoclonal antibodies monoclonal antibodies for tumor cells in CSF monoclonal gammopathy monoclonal gammopathy of uncertain significance mononeuritis multiplex 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assoc.with primary malig.other sites neoplasm, primary of CNS-aged neoplasm, primary of CNS-children neoplasm, primary of CNS-classification neoplasm, primary of CNS-differential diagnosis neoplasm, primary of CNS-familial occurrence neoplasm, primary of CNS-hemorrhage in neoplasm, primary of CNS-incidence of neoplasm, primary of CNS-infants neoplasm, primary of CNS-intraventricular neoplasm, primary of CNS-multiple neoplasm, primary of CNS-recurrent neoplasm, primary of CNS-surgical treatment of neoplasm, primary of CNS-survival neoplasm, primary of CNS-survival and lymphocytic infiltration neoplasm, primary of CNS-treatment of neoplasm, second primary neoplastic angioendotheliosis neoplastic meningitis nephritis nephrotic syndrome nerve biopsy nerve block nerve conduction studies nerve conduction studies, motor nerve conduction studies, sensory nerve hypertrophy nerve injury nerve root biopsy nerve root enhancement nerve root hypertrophy nerve root, lumbar, lesion of nerve root, 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cardiac-transvenous pachymeningitis, cranial pain pain, abdominal pain, arm pain, back pain, buttock pain, foot pain, genital pain, head pain, intractable treatment of pain, leg pain, management of chronic pain, neuropathic pain, periorbital pain, severe pain, testicular pain, thigh PALA palliative care pancreas transplantation pancreatitis pancuronium pancytopenia panic attacks papilledema papillitis papillophlebitis papovavirus paralysis paralysis, acute paralysis, acute areflexic paralysis, asymmetric paraneoplastic brainstem encephalitis paraneoplastic cerebellar degeneration paraneoplastic ganglionopathy paranoia paraparesis paraparesis, progressive paraparesis, spastic paraparesis, spastic, tropical paraphasias paraplegia paraplegia, acute paraplegia, neonatal paraproteinemia parasitic infection parasitic infection, CNS paraspinal muscle paraspinal muscle weakness paratrigeminal syndrome parechovirus encephalitis paresthesias paresthesias, feet paresthesias, hands Parkinson disease Parkinson disease, diagnosis Parkinson disease, drug induced Parkinson disease, misdiagnosis Parkinson disease, postencephalitic Parkinson disease, progression Parkinson disease, treatment of Parkinsonism hyperpyrexia syndrome Parkinsonism plus syndrome Parkinsonism syndrome Parkinsonism, freezing phenomena in Parkinsonism-dementia complex parotid gland swelling parotitis paroxetine paroxysmal neurologic deficits paroxysmal neurologic disorder PAS positive pathergy test pathognomonic pathologic gambling pathology patient information and support pediatric autoimmune neuropsychiatric disorders associated with streptococcal infection pellagra pelvic mass pembrolizumab pemoline penicillamine penicillin pergolide perhexiline maleate periaqueductal lesion periarteritis nodosa pericardial effusion pericardial friction rub pericarditis periictal pseudoprogression perineuritis periodic paralysis perioral numbness peripheral blood smear peripheral blood smear, abnormal peripheral blood stem cell transplantation peripheral nerve, lesion of periphlebitis perivascular enhancement perivascular inflammation periventricular leukomalacia peroneal nerve palsy peroneal nerve, lesion of peroxisomal disease perseveration personality change personality disorder petechiae Peyronie's disease phencyclidine poisoning phenobarbital phenothiazine phenothiazine, dyskinesia associated with phenylketonuria phenylpropanolamine pheochromocytoma Philadelphia chromosome phonophobia photophobia photopsias photosensitivity, eye photosensitivity, skin physical therapy physostigmine pigmentary retinopathy pimozide pimozide, side effects pineal, neoplasm pinealoma piperazine Pisa syndrome pitfalls pituitary pituitary hyperemia pituitary stalk pituitary stalk, enlarged pituitary stalk, lesion of pituitary, adenoma pituitary, apoplexy pituitary, biopsy pituitary, dysfunction pituitary, enlargement pituitary, hormones of pituitary, insufficiency of pituitary, lesion of pituitary, metastasis to 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postural abnormality potassium channel antibodies practice guidelines pramipexole praziquantel precipitating factors pre-eclampsia pregnancy, neurologic complications in premarin premature infant premature infant, problems in prenatal diagnosis by amniocentesis prethrombotic state prevention of neurologic disorders priapism primary intracranial hypotension primary thrombocythemia procarbazine progeria progesterone prognosis progressive encephalomyelitis with rigidity syndrome progressive multifocal leucoencephalopathy progressive multifocal leukoencephalopathy, etiology progressive neurologic disorder progressive supranuclear palsy prolactin prolactin, elevated promethazine propranolol proptosis proptosis, alternating proptosis, bilateral proptosis, unilateral proteinuria proteus mirabilis prothrombin time, prolonged proton beam therapy proton pump inhibitors protozoan infection proximal muscle atrophy pruritus Pseudallescheria boydii pseudoabducens palsy pseudoathetosis pseudocyst 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encephalopathy, delayed radiation hypersensitivity radiation necrosis radiation neuropathy radiation therapy, CNS treatment and complications with radiation therapy, stereotactic radiation therapy, total body radicular pain radiculitis radiculopathy radioimmunoassay radioiodine therapy ragged-red fibers Ramsay Hunt syndrome ranitidine Rankin score rapidly fatal neurologic illness rapidly progressing neurologic illness rash ravulizumab raw fish ingestion raw milk ingestion Raynaud's phenomenon reactive pleocytosis reading disorder, acquired receptor tyrosine kinase inhibitor rechallenge recurrent recurrent laryngeal nerve paralysis red cell aplasia Red flags reflex sympathetic dystrophy reflex, brainstem refractive errors refractory sprue Refsum's disease regional enteritis rehabilitation for neurologic disorders release phenomena REM sleep behavior disorder remdesivir remission remote effect of cancer on the nervous system renal cell carcinoma renal failure renal infarct renal stones renal transplantation renal tubular necrosis renal vein thrombosis repetitive nerve stimulation respirations in CNS disease respirator respiratory arrest respiratory depression respiratory distress syndrome, neurologic status with respiratory failure respiratory paralysis, pharmacologic respiratory tract infection restless leg syndrome restrictive ophthalmopathy reticulum cell sarcoma retina, abnormal retinal arteriole attenuation retinal artery occlusion retinal biopsy retinal branch artery occlusion retinal degeneration retinal detachment retinal hemorrhages retinal infarction retinal ischemia retinal lesion retinal microvascular disease retinal vasculitis retinal vasculopathy retinal vasculopathy with cerebral leukodystrophy retinitis pigmentosa retinopathy retrobulbar neuritis retrocollis retro-orbital pain retroperitoneal fibrosis retropulsion reverse straight leg raising test reversible cerebral vasoconstrictive syndromes reversible ischemic neurologic deficit reversible 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Schilder's disease schistocytes schistosomiasis schizophrenia Schmidt syndrome sciatic neuropathy sciatica scleritis sclerodactyly scleroderma scleroderma, neurologic involvement with scleromyxedema sclerosis, bone sclerotherapy scoliosis scoliosis, neurologic association with scotoma scotoma, central scotoma, paracentral-homonymous screening season sedimentation rate sedimentation rate, elevated segmental demyelination seizure seizure, adult onset seizure, children seizure, complications following seizure, drug resistance seizure, drug-induced seizure, etiology of seizure, febrile seizure, focal seizure, intractable seizure, intractable, treatment of seizure, medication failure seizure, minor motor seizure, neonatal seizure, non-treatment of seizure, peripartum seizure, pregnancy seizure, prevention of seizure, psychomotor-temporal lobe seizure, systemic disease causing seizure, tonic-clonic seizure, treatment of seizure, treatment of, first seizure, unknown origin seizure, withdrawal seizure, women seizure, workup of selective norepinephrine reuptake inhibitor selective serotonin reuptake inhibitors sella trucica sella turcica, enlargement of selumetinib semustine sensorineural hearing loss sensory ganglia sensory ganglia, abnormal sensory level sensory loss sensory loss, asymmetric sensory loss, truncal sensory polyneuropathy sensory tricks septicemia seroconversion serologic testing serologic testing of cerebrospinal fluid serologic testing, false negative serologic testing, false positive seronegative seropositive serotonin serotonin agonist serotonin syndrome sertraline serum alanine aminotransferase serum lipase, elevated serum sickness severe acute respiratory syndrome sex reassignment surgery sexual behavior, disorder of sexual dysfunction in neurologic disease sexual intercourse shared decision making sheathing of retinal veins Sheehan's syndrome Shiga toxin shivering shock, cardiogenic shock, hypovolemic shooting pain short stature shoulder, pain in shoulder-hand syndrome shunt procedure, ventricular shunt procedure, ventricular-complications of shunt procedure, ventriculo-peritoneal sialadenitis sicca syndrome sickle cell disease sildenafil simultanagnosia simvastatin sinemet single photon emission computed tomography single photon emission computed tomography, thallium single-fiber electromyography sinuses, diseases of sinusitis sirolimus Sjogren's syndrome Sjogren's syndrome, childhood Sjogren's syndrome, neurologic manifestations of skin, biopsy skin, darkening of skin, lesions in neurologic disorders skull x-ray skull x-ray, abnormal sleep sleep pathology and physiology slit lamp examination slow virus infection of CNS slurred speech small vessel disease small vessel vasculitis SMART syndrome smell snail snout reflex soap-bubble appearance sodium valproate sodium valproate, toxicity solvent somatosensory evoked potentials somnolence sonophobia sore throat South America spasticity speech disorder speech, loss of speech, slowed speech, unintelligible sphenoid sinus spinal cord spinal cord, biopsy spinal cord, cervical spinal cord, compression of spinal cord, compression of, acute spinal cord, compression, epidural abscess causing spinal cord, enlargement spinal cord, infarction of spinal cord, injury of spinal cord, injury, functional capacity of patient with spinal cord, injury, management of spinal cord, injury, sexual dysfunction in spinal cord, ischemic lesion of spinal cord, lesion of spinal cord, metastasis to spinal cord, metastasis to, primary source spinal cord, metastasis to, treatment of spinal cord, neoplasm spinal cord, neoplasm, extramedullary spinal cord, neoplasm, intramedullary spinal cord, pathologic exam of spinal cord, vascular malformation of spinal muscular atrophy spinal percussion spinal stenosis spine, metastasis to spine, metastasis, primary source spinocerebellar degeneration spirochete infection spironolactone splenectomy splenium of corpus callosum splenomegaly splinter hemorrhages spongy degeneration of brain spontaneous remission sporotrichosis, systemic sprain, cervical St. John's wort standing difficulty staphylococcal protein A column therapy staphylococcus aureus stare staring spells startle myoclonus startle reaction statin therapy statin therapy, discontinuation status asthmaticus status epilepticus status epilepticus, intractable status epilepticus, nonconvulsive status epilepticus, recurrent steatorrhea stellate-ganglion block stem cell rescue stem cell transplantation stent, carotid artery stent, carotid artery, complications steppage gait stereotaxic surgery steroid steroid dementia steroid injection steroid psychosis steroid responsive encephalitis steroid responsive encephalopathy steroid sparing therapy steroid therapy, CNS treatment and complications with stiff joints stiff legs stiff man syndrome stiff man syndrome, variant stillbirth Still's disease stimulation, deep brain stool examination, ova and parasites streptococcus agalactiae streptococcus bovis streptococcus pneumoniae streptokinase streptomycin stress, emotional striatal encephalitis striatum, lesion of striatum, lesion of, bilateral stridor stroke, progression of strokelike episodes strongyloides stercoralis strongyloides stercoralis hyperinfection syndrome strychnine poisoning stuporous subacute myelo-opticoneuropathy(S.M.O.N.)complex subacute sclerosing panencephalitis(S.S.P.E.)Dawson's disease subacute sclerosing panencephalitis, acute subacute sclerosing panencephalitis, adult onset subarachnoid hemorrhage subarachnoid hemorrhage, cerebral convexity subarachnoid hemorrhage, recurrent subclavian artery stenosis subconjunctival hemorrhage subcortical hemorrhage subcortical U fibers subcutaneous edema subcutaneous nodules subdural hematoma subdural hematoma, chronic subdural hematoma, nonsurgical treatment of subtemporal decompression sudden death suicide sulcal effacement sulfonamides sulfone sulindac sumatriptan superior oblique palsy superior orbital 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