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hyperparathyroidism hyperpathia hyperperfusion syndrome hyperphosphatasia hyperpigmentation of skin hyperreflexia hypersegmented polys hypersensitivity reaction hypersomnia hypertension hypertension, cerebrovascular disease with hypertensive emergency hypertensive encephalopathy hypertensive encephalopathy, venous hyperthyroidism hypertrichosis hypertriglyceridemia hypertrophic intracranial pachymeningitis hypertrophic pachymeningitis, IgG4 related disease hypertrophic spinal pachymeningitis hypertrophy, ventricular hypertropia hyperviscosity hyperviscosity syndrome hypnosis hypoalbuminemia hypocalcemia hypocomplementemia hypoglossal nerve paralysis hypoglycemia hypoglycorrhachia hypogonadism hypokalemia hypokalemic paralysis hypokalemic periodic paralysis hypokinetic left ventricle hyponatremia hyponatremia with cerebral disorders hyponatremic encephalopathy hypoparathyroidism hypophosphatemia hypophysectomy hypophysitis, IgG4-related hypopituitarism hypoprothrombinemia hypopyon hyporeflexia hypotension, systemic hypothalamus hypothalamus, damage to hypothalamus, disturbance of hypothalamus, lesion of hypothalamus, neoplasm of hypothermia hypothyroidism hypotonia hypoxia iatrogenic neurologic disorders ibrutinib ibuprofen idiopathic idiopathic cranial polyneuropathy idiopathic inflammatory myopathy idiopathic midline granuloma idiopathic polyneuropathy IFA IgG4, serum IgG4-related disease ileus, paralytic imbalance imipramine immediate recall immune checkpoint inhibitors immune reconstitution inflammatory syndrome immune-related adverse events immunization, neurologic complications with immunocompetent immunodeficiency immunoelectrophoresis, serum immunofluorescence immunofluorescent"band"test immunohistochemistry immunologic disease immunology and the nervous system immunomodulation immunosuppression immunosuppressive agents immunotherapy impotence impulsivity inability to sit up inappropriate antidiuretic(A.D.H.)hormone inattention incidence incidental finding inclusion bodies inclusion bodies, eosinophilic cytoplasmic inclusion body myositis incontinence, fecal incoordination India indinavir indomethacin industrial neurologic disorders infection infectious mononucleosis infectious mononucleosis, neurologic findings with inferior colliculus infliximab influenza influenza A virus informed consent infraspinatus muscle injection neuropathy INR values insect sting insecticides insomnia insular cortex intellectual deficit intellectual deterioration interferon interferon alpha interferon beta 1-a interferon beta 1-b interferonopathy internal carotid artery internuclear ophthalmoplegia internuclear ophthalmoplegia, unilateral interstitial pulmonary fibrosis intestinal biopsy intestinal obstruction intestinal pseudoobstruction intraaortic balloon pump intracardiac devices intracerebral hemorrhage intracerebral hemorrhage, causes of intracerebral hemorrhage, clot evacuation intracerebral hemorrhage, differential diagnosis of intracerebral hemorrhage, lobar intracerebral hemorrhage, location of intracerebral hemorrhage, multiple intracerebral hemorrhage, recurrent intracerebral hemorrhage, small intracerebral hemorrhage, treatment of intracerebral hemorrhage, young adult intracranial hemorrhage intracranial hypertension, benign intracranial hypertension, benign, differential diagnosis intracranial hypertension, benign, pathogenesis of intracranial hypertension, benign, without headache intracranial hypertension, benign, without papilledema intracranial hypotension intracranial pressure, increased intracranial pressure, increased, treatment of intranasal medication intraocular pressure, increase intrathecal analgesic intrathecal chemotherapy intrathecal steroid intravascular volume expansion intravenous intravenous drug abuse intravenous line intraventricular chemotherapy intraventricular hemorrhage intraventricular hemorrhage, primary intraventricular hemorrhage, treatment intrinsic hand muscles, wasting of intubation ipilimumab iridocyclitis iris, abnormal iritis iron, brain iron, serum, elevated irritability Isaacs syndrome ivy sign JAK2 V617F mutation Japan jaundice jaw claudication jaw jerk, abnormal jaw pain joint steroid injection jugular foramen syndrome juvenile distal and segmental muscular atrophy kaliuresis Kawasaki disease Kayser-Fleischer ring Kearns-Sayre syndrome keratitis keratitis, interstitial Kernig's sign knee pain Korsakoff's psychosis lacrimal gland enlargement lacrimation lactic acidemia lactic dehydrogenase(LDH) lactobacillus lacunar infarction laminectomy laminectomy, cervical laminectomy, lumbar lamotrigine lanreotide Lasegues sign laser therapy lateral cutaneous nerve of forearm lateral medullary syndrome lateral rectus palsy lateral sinus thrombosis laterocollis lateropulsion Latin America laughing laughing, pathologic L-dopa L-dopa, drug interactions with and side effects of lead and the nervous system lead line, gingival lead poisoning learning disability Leber's hereditary optic neuropathy lecanemab left-right orientation leg atrophy leg numbness leg spasms leg spasms, painful leg swelling leg weakness, bilateral leg weakness, unilateral Legionnaires'disease Leigh's disease Lennox-Gastaut syndrome lenticular nucleus, lesion of, bilateral leprosy leptomeningeal melanoma leptospirosis lesions too numerous to count lethargy leucine rich glioma inactivated 1 antibodies leukemia leukemia, neurologic findings assoc.with leukocytosis leukoencephalitis leukoencephalopathy leukoencephalopathy, toxic leukopenia level of consciousness level of consciousness, decreased levetiracetam Lhermitte's sign libido libido, decreased lid abnormalities lidocaine lidocaine, intravenous lidocaine, patch lidocaine, topical life expectancy life support, withdrawal of life support, withholding of life sustaining treatment lifestyle ligamentum flavum ligamentum flavum, ossification of lightheaded limb-girdle weakness limbic encephalitis limping linear accelerator linezolid linomide lipid lowering agent lipid storage disorder of CNS lipid storage myopathy lipoma of CNS lipoma of skin lipomatosis lipomatosis, epidural listeria monocytogenes listeriosis, CNS lithium livedo reticularis liver biopsy liver disease liver function enzymes liver nodules liver scan liver transplantation long bone lesion loose teeth lorazepam lordosis lovastatin low back pain low back pain, chronic low back pain, cost of low back pain, differential diagnosis of low back pain, risk factors for low back pain, sudden severe L-tryptophan lumbar canal, stenosis of lumbar drain lumbar puncture lumbar puncture, complications of lumbar puncture, indications for lumbar puncture, repeated lumbar sacral spine, abnormality of lumbar spine manipulation lumbar traction lumbosacral plexopathy lumbosacral plexus lumbosacral plexus, lesion of lumbosacral plexus, neuritis lumbosacral radiculopathy lung biopsy lung nodule lung-brain syndromes lupus anticoagulant luteinizing hormone Lyme disease Lyme disease, children lymph node biopsy lymphadenitis lymphadenopathy lymphadenopathy, axillary lymphadenopathy, cervical lymphadenopathy, hilar lymphadenopathy, paraaortic lymphocytic meningoradiculitis lymphoid adenohypophysitis lymphoid hyperplasia lymphoma lymphoma involving CNS lymphoma, meningeal lymphoma, primary of CNS lymphoma, systemic lymphomatoid granulomatosis lymphopenia lysosomal storage disease macroglobulinemia macular degeneration magnesium sulfate magnet therapy magnetic stimulation, brain magnification angiography malabsorption malabsorption syndrome malaise malaria malformation, CNS, congenital malformation, vascular malformation, vascular, cerebral malformation, vascular, cryptic malformation, vascular, dural malformation, vascular, screening for malformation, vascular, treatment of malformation, venous malignancy screen malignant external otitis malignant optic glioma of adulthood malingering malpractice managed care manic-depressive mannitol Marcus Gunn pupil Marfan syndrome marihuana masseter muscle hypertrophy masseter muscle tenomyositis mastoidectomy mastoiditis mattress maxillary nerves McArdle's disease medial branch block medial rectus palsy median nerve median nerve, lesion of median neuropathy mediastinum, mass of medical-legal aspects of neurology medulla oblongata, infarction of medulla oblongata, lesion of medullary streaks Mees lines melanocytoma, meningeal melanoma, malignant melanomatosis, primary malignant melanosis, primary meningeal MELAS syndrome Melkersson's syndrome mellaril memory, defect of recent memory, impairment of memory, recent meningeal biopsy meningeal biopsy, false negative meningeal enhancement meningeal enhancement, nodular meningeal gliomatosis meningeal sarcomatosis meninges meningioma meningismus meningitis meningitis, adults meningitis, aseptic meningitis, aspergillus meningitis, bacterial meningitis, bacterial, community acquired meningitis, bacterial-negative CSF culture meningitis, 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meningitis, recurrent meningitis, rheumatoid meningitis, seizures with meningitis, spinal fluid smear and culture of meningitis, spinal fluid smear and culture-negative meningitis, syphilitic meningitis, TB meningitis, treatment of meningitis, treatment of, empirical meningitis, viral etiology in meningitis-encephalitis PCR panel meningoencephalitis meningoencephalitis, hemorrhagic meningoencephalomyelitis meningomyelitis meningovascular syphilis menopause menses menses, irregular mental retardation mental status, abnormal mental status, abnormal, acute meperidine meralgia paresthetica MERRF syndrome MERS mesencephalotomy mesial temporal lobe mestinon metabolic acidosis metabolic disorder, primary-screening tests metallic taste metamyelocytes metformin methadone methicillin resistant staphylococcus aureus methotrexate methylmalonic acid, serum methylmalonic acidemia metoclopramide metronidazole Mexican Mexico mexiletine mGlu R5 antibodies microangiopathy, brain microangiopathy, retina microdecompression microdiscectomy microemboli microglial nodules microhemorrhage, intracerebral microscopic polyangiitis microsurgery microsurgery, transsphenoidal microvascular thrombi midazolam midbrain, lesion of middle cerebellar peduncle, lesion middle cerebral artery territory infarction, malignant Middle east migraine migraine, children migraine, chronic migraine, EEG in migraine, equivalents migraine, foods causing migraine, intractable migraine, menses migraine, pathogenesis migraine, pregnancy migraine, premonitory symptoms migraine, prophylaxis migraine, seizures in migraine, transformed migraine, treatment of migraine, triggers milk Mills syndrome mimics minimally conscious state minimally invasive lumbar decompression minimally invasive surgery minocycline miosis mirtazapine misdiagnosis misnomer mitochondrial disease mitochondrial encephalomyopathy mitral valve lesion mitral valve vegetation mixed connective tissue disease molecular genetics mongolism Monkeypox infection monoclonal antibodies monoclonal gammopathy monoclonal gammopathy of uncertain significance monomelic amyotrophy monomelic myositis mononeuritis multiplex mononeuropathy mononeuropathy multiplex mononeuropathy, children mononeuropathy, idiopathic mononeuropathy, sensory monoparesis mood change morphine mortality Morvan's fibrillary chorea mosquito motion sickness motor neuron disease Mott cells movement disorder movement disorder, drug induced movement disorder, extrapyramidal movement disorder, treatment of moyamoya moyamoya, adult MRI MRI pattern MRI, abdomen MRI, abnormal MRI, abscess, cerebral MRI, ADC maps MRI, angiography MRI, angiography, false negative MRI, brachial plexus MRI, CAT scan compared to MRI, cisternogram MRI, contrast enhanced MRI, contrast enhanced, subependymal MRI, cortical enhancement MRI, cranial nerves MRI, curvilinear peppering enhancement MRI, diffusion weighted MRI, disappearing lesion on MRI, emergent MRI, false negative MRI, false positive MRI, FLAIR MRI, flow void, blood MRI, functional MRI, gradient-echo MRI, gray matter enhancement MRI, gyral enhancement MRI, high signal foci on MRI, incidental finding MRI, indications for MRI, linear enhancement MRI, lumbosacral plexus MRI, mass effect on MRI, muscle MRI, negative MRI, nodular enhancement MRI, optic nerve MRI, orbit MRI, pelvis MRI, perfusion MRI, punctate pattern MRI, repeat MRI, ring sign MRI, serial MRI, skull bone changes MRI, spinal cord MRI, spinal cord, increased intramedullary cord signal MRI, spine MRI, sulcal hyperintensity MRI, susceptibility weighted MRI, T1 weighted fat suppression MRI, T1 weighted high signal foci MRI, venography MRI, vessel wall MRI, vessel wall enhancement MRS mucormycosis multimodal neuroimaging multinucleated giant cell multiple endocrine neoplasia multiple myeloma multiple organ failure multiple sclerosis multiple sclerosis, differential diagnosis of multiple sclerosis, misdiagnosis multiple sclerosis, pain in multiple sclerosis, paroxysmal symptoms in multiple sclerosis, relapsing multiple sclerosis, risk factors for multiple sclerosis, treatment of multiple sclerosis, tumefactive muscle atrophy, focal muscle atrophy, progressive muscle atrophy, static muscle biopsy muscle biopsy, extraocular muscle cramp muscle cramp, nocturnal muscle pain muscle pain-fasciculation syndrome muscle phosphorylase deficiency muscle relaxant muscle spasm muscle spasm, paraspinal muscle stiffness muscle strength, testing muscle tenderness muscle twitching muscle wasting, diffuse muscle weakness muscle weakness, insidious onset of muscle weakness, proximal muscle weakness, sudden onset of musicians mutism myasthenia gravis myasthenia gravis, differential diagnosis myasthenia gravis, drug induced myasthenia gravis, etiology of myasthenia gravis, misdiagnosis of myasthenia gravis, receptor site in myasthenia gravis, treatment of myasthenic syndrome mycobacterium kansasii mycophenolate mycoplasma mycoplasma pneumoniae mycotic aneurysm myelinolysis, extrapontine myelitis myelitis, autoimmune myelitis, longitudinal myelitis, post infectious myelitis, transverse myelitis, transverse, idiopathic myelitis, transverse, prognosis myelitis, transverse, recurrent myelogram myelogram, complications of myelogram, metrizamide myeloid sarcoma myelomalacia myelomeningocele myeloneuropathy myelopathy myelopathy, ischemic myelopathy, acute myelopathy, ascending myelopathy, chronic progressive myelopathy, transverse myelopathy, vacuolar myelopathy, venous hypertensive myeloproliferative disorder myeloradiculitis myeloradiculopathy myelotomy myocardial infarction myocardial injury myocardial ischemia myocarditis myoclonic jerks myoclonus myoclonus, cortical myoclonus, segmental myofascial pain syndrome myoglobinuria myokymia myopathy myopathy, acute myopathy, autoimmune myopathy, drug-induced myopathy, genetic myopathy, hypocalcemic myopathy, inflammatory myopathy, metabolic myopathy, mitochondrial myopathy, necrotizing myopathy, necrotizing, autoimmune myopathy, necrotizing, immune-mediated myopathy, proximal myopathy, steroid induced myopathy, steroid responsive myopathy, thyroid disease causing myopathy, toxic myopathy, vacuolar myopia myopia, sudden onset of myositis myositis ossifican, localized myositis ossificans, progressive myositis, bacterial myositis, eosinophilic myositis, focal myositis, fungal myositis, granulomatous myositis, ocular myositis, parasitic myotonia myotonia congenita myotonia, treatment of myotonic discharges mysoline nabilone nabiximols naloxone nanging naproxen naratriptan narcotic analgesics nasal decongestant nasal discharge nasal obstruction nasal polyp nasal septum, perforation of nasal spray nasal stuffiness nausea and vomiting neck extension neck pain neck stiffness neck surgery neck tenderness neck weakness necrotizing granuloma necrotizing vasculitis needle induced neuropathy negative Negri bodies nelfinavir neoplasm, germ cell neoplasm, intracranial neoplasm, intracranial with metastasis extracranially neoplasm, metastatic neoplasm, metastatic to CNS neoplasm, metastatic to CNS-differential diagnosis of neoplasm, metastatic to CNS-multiple neoplasm, metastatic to CNS-origin of neoplasm, metastatic to CNS-prognosis of neoplasm, metastatic to CNS-recurrent neoplasm, metastatic to CNS-surgical resection neoplasm, metastatic to CNS-survival neoplasm, metastatic to CNS-treatment of neoplasm, metastatic to CNS-work up for neoplasm, metastatic to Dura neoplasm, metastatic to lumbosacral plexus neoplasm, metastatic to muscle neoplasm, pituitary neoplasm, pituitary, incidental neoplasm, pituitary, treatment of neoplasm, primary intracerebral neoplasm, primary intracerebral, resection neoplasm, primary intracranial neoplasm, primary of CNS 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-incidence of neoplasm, primary of CNS-intraventricular neoplasm, primary of CNS-recurrent neoplasm, primary of CNS-surgical treatment of neoplasm, primary of CNS-survival neoplasm, primary of CNS-treatment of neoplastic angioendotheliosis nephritis nephrotic syndrome nerve agents nerve biopsy nerve biopsy, indication nerve block nerve conduction studies nerve conduction studies, motor nerve conduction studies, sensory nerve growth factor nerve hypertrophy nerve injury nerve root biopsy nerve root compression nerve root enhancement nerve root hypertrophy nerve root, lumbar, lesion of neuralgia neuralgia, intercostal neuralgia, treatment of neurectomy neurexin-3 alpha antibodies neurinoma neuritis, causes of neuritis, heavy metals causing neurocardiology neurocutaneous disease neurocutaneous melanosis neuroendocrinology neurofibrillary degeneration neurofibroma neurofibromatosis 1 neurogenic bladder neurogenic stunned myocardium neuroleptic neurologic complications neurologic complications of, chronic pulmonary disease 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cryoglobulinemic neuropathy, demyelinating neuropathy, diabetic neuropathy, etiologies of neuropathy, hereditary peripheral neuropathy, hypertrophic neuropathy, iatrogenic neuropathy, idiopathic neuropathy, ischemic neuropathy, ischemic monomelic neuropathy, medication induced neuropathy, motor neuropathy, motor, multifocal neuropathy, multifocal neuropathy, painful neuropathy, peripheral neuropathy, peripheral, treatment neuropathy, sensory neuropathy, sensory, hereditary neuropathy, short-fiber neuropathy, small-fiber neuropathy, small-fiber, painful sensory neuropathy, thoracoabdominal neuropathy, toxic neuropathy, vasculitic, nonsystemic neuropathy, vasculitic, systemic neuropathy, work up for neuroprotective agents neuropsychiatry neuroradiology neuroradiology, interventional neuroretinitis neurosis neurosyphilis neurotomy neurotoxic neurotoxin neurotransmitter neurovascular compression neutropenia nevus New England next-generation sequencing NICE guidelines nicotine nicotine patch nicotinic acid night blindness night sweats nimodipine nitrofurantoin nitrous oxide nivolumab NMDA antagonists NMDA receptors nocardiosis nocturia nonsteroidal anti-inflammatory drug non-vitamin K antagonist oral anticoagulants normal nortriptyline nosocomial infection notalgia paresthetica Notch3 gene numbness, extremity numbness, generalized nutritional deficiency nystagmus nystagmus, dissociated nystagmus, rotary nystagmus, see-saw nystagmus, vertical obesity obsessive-compulsive disorder occipital condyle fracture occipital lobe, infarction occipital lobe, infarction, bilateral occipital lobe, lesion of occipital nerve, stimulation occupational neurologic disorders occupational neuropathies octreotide ocular motility, disorders of oculomasticatory myorhythmia odynophagia old age, neurology of oligodendroglioma Ommaya reservoir ophelia syndrome ophthalmic artery ophthalmoplegia ophthalmoplegia, bilateral, acute ophthalmoplegia, painful ophthalmoplegia, progressive external ophthalmoplegia, total ophthalmoplegia, unilateral opiate opportunistic infection opportunistic infection, CNS opsoclonus opsoclonus-myoclonus syndrome optic ataxia optic atrophy optic atrophy, bilateral optic atrophy, unilateral optic canal optic canal, enlargement of optic chiasm optic chiasm, enlarged optic chiasm, lesion of optic disc edema optic glioma optic nerve optic nerve sheath enhancement optic nerve sheath fenestration optic nerve, compression of optic nerve, decompression of optic nerve, enhancement optic nerve, enlarged optic nerve, lesion of optic nerve, neoplasm of optic neuritis optic neuritis, bilateral optic neuritis, treatment of optic neuropathy optic neuropathy, bilateral optic neuropathy, ischemic optic neuropathy, ischemic, anterior optic neuropathy, ischemic, posterior optic neuropathy, toxic oral contraceptives oral contraceptives, cerbrovascular disease and oral contraceptives, neurologic complications with oral ulcerations orange peel appearance of skin orbit orbit, biopsy orbit, cellulitis of orbit, fat orbit, inflammation in orbit, lesions of orbit, mass orbit, pseudotumor of orbital apex orbital apex syndrome orbital compartment syndrome orchitis organ transplantation organomegaly oriental orthopnea orthostatic hypotension oscillopsia Osler's nodes osmotic demyelination syndrome osteitis osteoarthritis, lumbar spine osteoblastic lesions, causes of osteogenesis imperfecta osteolytic lesion, causes of osteomyelitis osteomyelitis, spinal osteoporosis otitis, neurologic complications with otosyphilis ototoxicity out-of-hospital emergency care ovarian tumor overlap syndrome overuse syndrome owl's eye sign of spinal cord oxcarbazepine oxycodone oxygen therapy pachymeningitis, cranial Paget's disease Paget's disease, psychosis in Paget's disease, spinal cord problem in pain pain, abdominal pain, anal pain, arm pain, back pain, body pain, buttock pain, central pain, chronic pain, deep brain stimulation for control of pain, elbow pain, flank pain, foot pain, genital pain, head pain, hysterical pain, interscapular pain, intractable treatment of pain, leg pain, management of chronic pain, mouth pain, neuropathic pain, pelvic pain, penile pain, perineum pain, periorbital pain, postlaminectomy pain, psychogenic pain, referred pain, sensation pain, severe pain, surgical treatment pain, teeth pain, testicular pain, thalamic stimulation for control of pain, thigh pain, threshold pain, throat pain, total body pain, wrist palinopsia palliative care pallor palmar erythema palpebral erythema palpitations pancreatitis pancytopenia panic attacks papilledema papilledema, unilateral papillitis paragonimiasis paralysis, acute paralysis, acute areflexic paralysis, asymmetric paramyotonia congenita paranoia paraparesis paraparesis, flaccid paraparesis, spastic paraplegia paraplegia, acute paraplegia, progressive paraproteinemia parasitic infection parasitic infection, CNS paraspinal infection paraspinal muscle paraspinal muscle weakness paraspinal steroid injection parathyroid adenoma parenteral alimentation paresthesias paresthesias, circumoral paresthesias, facial paresthesias, feet paresthesias, generalized paresthesias, hands Parkinson disease Parkinson disease, drug induced Parkinson disease, fluctuations in Parkinson disease, nonmotor problems of Parkinson disease, on-off phenomena in Parkinson disease, sensory symptoms in Parkinsonism syndrome Parkinsonism, freezing phenomena in parotid gland swelling parotitis paroxysmal extreme pain disorder paroxysmal neurologic deficits paroxysmal neurologic disorder paroxysmal nocturnal hemoglobinuria PAS positive PAS positive material in the brain pathergy test pathognomonic pathology patient controlled analgesia patient information and support pediatric neurology pellagra pembrolizumab penicillamine penicillin penis, hypesthesia of Percutaneous electrical nerve stimulation pergolide perianal sensory loss periaqueductal lesion periarteritis nodosa pericardial effusion pericardial friction rub pericarditis perifollicular hemorrhage perimetry perineum, numbness of perineuritis perineuritis, optic periodic paralysis periodic paralysis, thyrotoxic perioral numbness peripheral blood smear peripheral blood smear, abnormal peripheral nerve block peripheral pulse, absent peripheral vascular disease perivascular enhancement perivascular inflammation pernicious anemia peroneal nerve palsy peroneal nerve, lesion of perseveration personality change personality disorder pes cavus petechiae Peyronie's disease phantom limb pharyngeal sensation pharyngeal spasms phenobarbital phenothiazine pheochromocytoma phlebotomy phonophobia photophobia photopsias photosensitivity, skin physical activity physical therapy physician as patient pica pigmentary retinopathy pimozide pimozide, side effects pineal pineal, cyst piriformis muscle 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 pituitary, microadenoma placebo plasma cell dyscrasia plasmacytoma plasmacytosis plasmapheresis platelet aggregation platelet inhibiting drugs platelet inhibiting drugs, discontinuation platelet thrombi PLEDs pleocytosis of cerebrospinal fluid pleocytosis of cerebrospinal fluid, neutrophilic plethora pleural effusion pleurisy pneumocephalus pneumonia pneumothorax POEMS syndrome poison, neurologic problems with poison, organophosphate poliomyelitis-like illness polyclonal gammopathy polycystic kidneys polycythemia, primary polycythemia, secondary polydipsia polymerase chain reaction polymerase chain reaction, false negative polymyalgia rheumatica polymyositis polyneuritis polyneuropathy polyneuropathy, chronic inflammatory demyelinating polyneuropathy, chronic inflammatory demyelinating, variant form polyneuropathy, chronic inflammatory demyelinating-pure motor syn polyneuropathy, chronic inflammatory demyelinating-sens atax var polyneuropathy, chronic inflammatory demyelinating-variant forms polyneuropathy, chronic relapsing polyneuropathy, familial polyneuropathy, lymphomatous polyneuropathy, uremic polyps, gastrointestinal tract polyradiculoneuropathy polyuria Pompe's disease of glycogen storage pons, infarction of pons, lesion of pontine glioma porphyria port wine nevus position sensation, abnormal positive sharp waves post concussive syndrome post concussive syndrome, persistent post herpetic neuralgia post infectious cerebellar ataxia post transplant lymphoproliferative disease post traumatic pain syndrome posterior cerebral artery territory infarction posterior circulation stroke posterior column disease posterior fossa, lesion of posterior fossa, mass of posterior inferior cerebellar artery syndrome posterior interosseous nerve posterior interosseous neuropathy posterior leukoencephalopathy syndrome posterior longitudinal ligament, ossification of posterior spinal artery infarction posterior tibial nerve posterior tibial nerve compression postinfectious postoperative neurologic complications postoperative visual loss postpartum postpartum cerebral angiopathy postpartum cortical blindness posttraumatic postural abnormality potassium potassium channel antibodies practice guidelines pramipexole pravastatin praziquantel precipitating factors pre-eclampsia pregabalin pregnancy, anticonvulsants during pregnancy, neurologic complications in preherpetic neuralgia premarin premature infant pretectal syndrome prethrombotic state prevention of neurologic disorders primary care physician primary intracranial hypotension primary thrombocythemia progesterone prognathism prognosis progressive multifocal leucoencephalopathy progressive neurologic disorder progressive spinal muscular atrophy prolactin prolactin, elevated prolactinoma promethazine propofol propranolol proprioception, abnormal proptosis proptosis, bilateral proptosis, unilateral prostaglandin-E protease inhibitor, HIV-1 protein C deficiency protein S deficiency proteinuria prothrombin time, prolonged proton beam therapy proton pump inhibitors protozoan infection proximal muscle atrophy pruritus pseudoaneurysm pseudoathetosis pseudobulbar palsy pseudocyst pseudodementia pseudomyasthenia psoriatic arthritis psychiatric disorder psychiatric problems in neurologic disorders psychological testing psychological testing, children psychomotor retardation psychosis psychosis, acute psychosomatic disease psychotherapy psychotropic drugs ptosis ptosis, paroxysmal ptosis, unilateral public health pudendal nerve pudendal neuralgia pudendal neuropathy puerperium Puerto Rico pulmonary disease pulmonary edema pulmonary embolism pulmonary function tests pulmonary infection pulmonary infiltrates pulmonary nodules pulmonary opacity pupil, abnormality in neurologic disorders pupil, dilated and fixed, bilateral pupil, dilated and fixed, unilateral pupil, dilated, bilateral pupil, tonic Purkinje cell purpura pustules pyramidal tract pyramidal tract dysfunction quadriceps atrophy quadriparesis quadriparesis, progressive quadriplegia quadriplegia, transient quality of life quinidine quinine rabies prophylaxis rabies, nervous system involvement with race radial nerve radial nerve, palsy of radial nerve, superficial radial neuropathy, sensory radial pulse, unilateral decrease of radial tunnel syndrome radiation necrosis radiation therapy, CNS treatment and complications with radiation therapy, stereotactic radiation therapy, total body radicular pain radiculitis radiculoneuritis radiculopathy radiofrequency ablation radioimmunoassay ragged-red fibers Ramsay Hunt syndrome range-of-motion, neck Rankin score rapidly fatal neurologic illness rapidly progressing neurologic illness rash rash, hand rash, malar rat exposure raw milk ingestion Raynaud's phenomenon reading disorder, acquired rebound rechallenge rectal biopsy rectal sensation, impaired rectal sphincter tone, decreased recurrent red eye red feet Red flags red herring references, neurologic reflex sympathetic dystrophy reflex sympathetic dystrophy, children reflex, loss of refractory sprue regional enteritis rehabilitation for neurologic disorders relapsing polychondritis release phenomena remote effect of cancer on the nervous system renal artery stenosis renal biopsy renal cell carcinoma renal cyst renal failure renal stones renal transplantation repetition strain injury repetitive nerve stimulation respirator respiratory arrest respiratory depression respiratory distress syndrome, neurologic status with respiratory failure respiratory tract infection restless genital syndrome restless leg syndrome reticulum cell sarcoma retinal artery occlusion retinal branch artery occlusion retinal hemangioma retinal hemorrhages retinal infarction retinal ischemia retinal lesion retinal tumor retinal vasculitis retinopathy retinopathy, venous-stasis retrobulbar neuritis retrocollis retro-orbital pain retroperitoneal hemorrhage retrovirus revascularization, surgical reverse split hand sign reverse straight leg raising test reversible cerebral vasoconstrictive syndromes reversible ischemia reversible ischemic neurologic deficit reversible neurologic disorder reversible splenial lesion syndrome review article rhabdomyolysis rheumatic brain disease rheumatoid arthritis rheumatoid arthritis factor(R.A.factor) rheumatoid arthritis, neurologic complications of rheumatoid vasculitis rhinocerebral phycomycoses rhinorrhea rhinorrhea, CSF rhizotomy rhizotomy, chemical rhizotomy, dorsal rhizotomy, phenol rhytidectomy riboflavin rickettsial organism rifampin rippling muscle disease risk factors risk-benefit assessment ritonavir rituximab rizatriptan Rocky Mountain spotted fever rodents Romberg's sign root lesion, nerve ropinirole rotavirus Roth spots saddle anesthesia safety sagging of the brain salivary gland enlargement salivation, excessive saphenous nerve saquinavir sarcoid-like reaction sarcoidosis sarcoidosis, CNS sarcoma sarcoma, osteogenic sarilumab Sarin scalp necrosis scalp swelling scalp tenderness schistocytes schistosomiasis schizophrenia sciatic neuropathy sciatica scleritis sclerodactyly scleroderma scleroderma, neurologic involvement with scleromyxedema sclerosis, bone scoliosis scoliosis, neurologic association with scorpion sting scotoma scotoma, central scotomata, scintillating screening scrotum, hypesthesia of scuba diving scurvy season second impact syndrome sedation sedimentation rate sedimentation rate, elevated seizure seizure, children seizure, complications following seizure, differential diagnosis of seizure, drug resistance seizure, duration seizure, elderly seizure, focal seizure, intractable seizure, intractable, treatment of seizure, nonepileptic seizure, prevention of seizure, psychomotor-frontal lobe seizure, psychomotor-temporal lobe seizure, stimulus sensitive seizure, treatment of seizure, treatment of, monotherapy selective serotonin reuptake inhibitors sella trucica sella turcica, enlargement of sensorineural hearing loss sensory ganglia sensory level sensory loss sensory loss, asymmetric sensory loss, cutaneous sensory loss, leg sensory loss, patchy sensory nerve action potentials sensory polyneuropathy sensory polyneuropathy, cryptogenic sensory testing, quantitative septicemia seroconversion serologic testing serologic testing of cerebrospinal fluid serologic testing, false negative serologic testing, false positive seronegative serositis serotonin serotonin agonist serotonin syndrome serum alanine aminotransferase serum glutamic oxaloacetic transaminase serum lipase, elevated serum tumor markers severe acute respiratory syndrome sex reassignment surgery sexual dysfunction in neurologic disease shaking Shiga toxin shock, cardiogenic shooting pain short stature shoulder, frozen shoulder, pain in shoulder, swelling of shoulder, weakness shoulder-hand syndrome shunt procedure, lumboperitoneal shunt procedure, lumboperitoneal-complications of shunt procedure, ventricular shunt procedure, ventricular-complications of shunt procedure, ventriculo-peritoneal sialadenitis sicca syndrome sickle cell crisis sickle cell disease sickle cell trait simultanagnosia simvastatin sinemet single-fiber electromyography sinus pain sinus tenderness sinus, biopsy of sinuses, diseases of sinusitis Sjogren's syndrome Sjogren's syndrome, neurologic manifestations of skew deviation skiing skin, biopsy skin, cherry-red skin, darkening of skin, discoloration skin, lesions in neurologic disorders skin, pale skin, temperature difference skull fracture skull fracture, basal skull x-ray skull x-ray, abnormal slaughter house worker sleep sleep apnea sleep apnea, obstructive sleep pathology and physiology sleeping sickness slurred speech small vessel disease small vessel vasculitis small-bowel resection SMART syndrome sneeze snout reflex soap-bubble appearance sodium channel dysfunction sodium valproate sodium valproate, intravenous soluble interlukin 2 receptor somatosensory evoked potentials somatostatin analogue somnambulism somnolence sonophobia sore throat South America spastic diplegia spasticity spasticity, treatment of speech disorder speech, slowed sphenoid sinus sphenoid sinus biopsy sphenoid sinus mucocele sphenoiditis sphenoidotomy sphenopalatine ganglion block spina bifida spinal accessory nerve spinal accessory nerve palsy 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, extramedullary cyst of spinal cord, infarction of spinal cord, injury of spinal cord, injury, management of spinal cord, ischemic lesion of spinal cord, lesion of spinal cord, metastasis to spinal cord, metastasis to, prognosis of spinal cord, metastasis to, treatment of spinal cord, neoplasm spinal cord, neoplasm, extramedullary spinal cord, neoplasm, extramedullary intradural spinal cord, neoplasm, intramedullary spinal cord, vascular disorders Affecting spinal cord, vascular malformation of spinal fusion spinal headache spinal headache, treatment of spinal manipulation spinal muscular atrophy spinal pachymeningitis spinal percussion spinal stenosis spinal stenosis, cervical canal spinal stenosis, familial spine, infection of spine, injury of spine, metastasis to spine, metastasis to, treatment spine, tenderness spinocerebellar ataxia type 3/Machado Joseph disease spirochete infection splenic infarcts splenic-vein thrombosis splenium of corpus callosum splenomegaly splinter hemorrhages spondylitis spondylolisthesis spondylosis spontaneous remission sports medicine, neurology of sprain, cervical sprain, cervical-treatment of Spurling test squamous cell carcinoma of head and neck St. John's wort standing difficulty staphylococcus aureus stare staring spells startle reaction statin therapy statin therapy, discontinuation statin therapy, dose status epilepticus status epilepticus, intractable steatorrhea stellate-ganglion block stem cell rescue stem cell transplantation stent, carotid artery stent, venous sinus stent, vertebral artery steppage gait stereotaxic surgery sterile water injections steroid steroid injection steroid psychosis steroid responsive encephalitis steroid responsive encephalopathy steroid therapy, CNS treatment and complications with stiff joints stiff legs stiff man syndrome Still's disease stimulation, deep brain stimulation, thalamic stomatitis strabismus straight leg raising test strain, back streptococcus pneumoniae streptokinase streptomycin stress management stress, emotional striatal encephalitis striatum, lesion of striatum, lesion of, bilateral strokelike episodes stuporous Sturge-Weber syndrome styloid process, elongated subacute sclerosing panencephalitis(S.S.P.E.)Dawson's disease subacute sclerosing panencephalitis, adult onset subarachnoid hematoma, spinal subarachnoid hemorrhage subarachnoid hemorrhage, causes of subarachnoid hemorrhage, cerebral convexity subarachnoid hemorrhage, clinical presentation subarachnoid hemorrhage, nonaneurysmal subarachnoid hemorrhage, normal cerebral angiography with subarachnoid hemorrhage, prognosis subarachnoid hemorrhage, recurrent subarachnoid hemorrhage, treatment of subarachnoid hemorrhage, work up subclavian artery occlusion subclavian artery stenosis subcortical hemorrhage subcutaneous nodules subdural blood patch subdural effusion subdural hematoma subdural hematoma, bilateral subdural hematoma, spinal subdural hygroma suboccipital decompression substance P subtraction of x-rays sudden death suicide sumatriptan SUNCT syndrome superior cerebellar artery infarction superior cluneal neuralgia superior ophthalmic vein superior ophthalmic vein, dilated superior orbital fissure superior orbital fissure syndrome superior sagittal sinus thrombosis supraorbital nerve supraorbital nerve stimulation suprascapular nerve suprascapular neuropathy suprasellar lesion supraspinatus muscle supratentorial lymphocytic inflam parenchy perivasc enhanc responsive to steroids Susac's syndrome suspended sensory loss swallowing swayback sweating sweating, abnormality of Sweet's syndrome swollen joint symmetric brain lesions sympathectomy sympathetic block symptomatic synangiosis syncope syncope, recurrent synovitis synovitis, acne, pustulosis, hyperostosis, and osteitis syndrome syphilis, diagnosis and treatment syphilis, meningomyelitis syphilis, neurologic complications with syphilis, ocular syringomyelia systemic illness systemic juvenile idiopathic arthritis systemic lupus erythematosus systemic lupus erythematosus, childhood CNS systemic lupus erythematosus, neurologic complications with systemic lupus erythematosus, skin changes in T cell lymphoma tabes dorsalis Tabun tachycardia tachypnea Takayasu's arteritis Takotsubo cardiomyopathy tamoxifen tandem gait, ataxic Tanzania tapendatol tardive akathisia tardive dyskinesia tardive dystonia tardive pain syndrome target red cells Tarlov's cyst tarsal tunnel syndrome taste tectal glioma telangiectases telangiectases, periungual temozolomide temporal artery, biopsy temporal artery, pulsatile temporal artery, tender temporal lobe, lesion temporal lobe, lesion, bilateral temporalis muscle hypertrophy temporalis muscle swelling temporalis muscle wasting temporomandibular joint temporomandibular joint, pain temporomandibular joint, synovitis tender points tenderness tenderness, occipital tendonitis tendonitis, calcific tennis elbow tenosynovitis tensilon test tensilon test, false positive tension headache tentorium cerebelli teratogenesis teratogenic drugs teratoma teratoma, ovarian testicular atrophy testicular biopsy testosterone testosterone, serum, low tetany tethered spinal cord tetracycline Texas thalamic syndrome thalamotomy thalamus thalamus, focused ultrasound ablation thalamus, infarction, bilateral thalamus, lesion of thalamus, lesion of-bilateral theophylline thermography third nerve third nerve palsy third nerve palsy, bilateral third nerve palsy, partial third nerve palsy, pupil sparing in third nerve palsy, superior branch thirst thoracic outlet syndromes Three territory sign thrombectomy thrombocytopenia thrombocytosis thrombophlebitis thrombophlebitis, prophylaxis thrombotic microangiopathy thrombotic thrombocytopenia purpura thrush thymoma thyroid function tests thyroid gland, enlarged thyrotoxicosis tiagabine tick bite tick paralysis tick-borne encephalitis Tinel's sign tinnitus tinnitus, pulsatile tissue plasminogen activator, intravenous tizanidine tocilizumab Tolosa Hunt syndrome tomaculous neuropathy tongue deviation tongue, black tongue, discoloration tongue, enlarged tongue, fasciculations of tongue, infarction tongue, pain tongue, smooth tongue, swelling tongue, ulcer tongue, weakness tonic spasms tonsillar herniation of cerebellum tooth loss toothache topiramate torticollis torticollis, post traumatic toxic encephalopathy toxins, nervous system toxoplasma complement fixation test toxoplasma gondii toxoplasmosis, acquired toxoplasmosis, CNS toxoplasmosis, muscle tramadol tram-track sign transcutaneous electrical nerve stimulation transdermal medication transgender transient ischemic attack transient ischemic attack, differential diagnosis of transient ischemic attack, venous transient neurologic deficit transient perivascular inflammation of the carotid artery transluminal angioplasty, basilar artery transluminal angioplasty, carotid artery transluminal angioplasty, vertebral artery trauma travel history travel, foreign treatment of neurologic disorder treatment, empirical tremor tremor, cerebellar tremor, intention tremor, leg tremor, post traumatic tremor, postural tremor, treatment of tremulousness tricyclic antidepressant trigeminal autonomic cephalgia trigeminal nerve trigeminal nerve, lesion of trigeminal nerve, stimulation trigeminal neuralgia trigeminal neuralgia, bilateral trigeminal neuralgia, continuous pain trigeminal neuralgia, etiology trigeminal neuralgia, pathogenesis of trigeminal neuralgia, surgical treatment of trigeminal neuralgia, treatment of trigeminal neuropathy trigeminal neuropathy, sensory trigeminovascular system triglycerides trimethadione trimethoprim-sulfamethoxazole triptans trochlear nerve palsy tropical disease troponin T truncal polyneuropathy trypanosoma brucei gambiense tsetse fly tuberculin skin test, positive tuberculoma of CNS tuberculosis tuberculosis, disseminated tuberculosis, miliary of brain tuberculosis, spinal tubular discectomy tumefactive lesion tumor necrosis factor inhibitor typhus, murine typhus, scrub ulcerative colitis ulnar nerve ulnar neuropathy ultrasonography ultrasonography, carotid artery ultrasonography, head ultrasonography, nerve ultrasonography, orbit uncal herniation unconsciousness unconsciousness, transient undiagnosed upgaze upgaze, paralysis of upward deviation of eyes uremia urinary casts urinary catecholamines urinary incontinence urinary porphyrin level, elevated urinary retention urinary urgency urine corproporphyrins urine test for metabolic disorders urine test in toxic screen urine, dark urokinase urticaria uveitis vaccination, neurologic complications with vaccine vaccine-induced thrombocytopenia vagal neuropathy vagus nerve stimulation valacyclovir valium valsalva maneuver varicella zoster virus varicella zoster virus, encephalitis vascular endothelial growth factor vascular malformation, children, intracranial vasculitides vasculitides, benign cerebral vasculopathy vasoactive substances vasoconstrictive drugs vasospasm vasospasm, cerebral vasospasm, internal carotid artery vectors of infection vegetarianism Venereal Disease Research Laboratory test venlafaxine venogram, cerebral venous engorgement venous hemangioma venous hypertension venous thrombosis, non-cerebral ventricular tachycardia ventriculitis ventriculostomy ventriculostomy, endoscopic verapamil vertebral artery vertebral artery disease vertebral artery occlusion vertebral artery occlusion, bilateral vertebral artery stenosis vertebral erosion vertebral infarction vertebral-basilar artery, intraluminal clot vertebral-basilar insufficiency vertigo vertigo, episodic vertigo, migraine causing vertigo, post-traumatic vestibular exercises vestibular migraine vestibulopathy vibratory sensation vibratory sensation, abnormal vibratory stimulation Villaret's syndrome violinist viral infection viral infection, CNS viral load viral myopathy Virchow-Robin spaces, dilated viseromegaly vision, blurred vision, blurred, monocular vision, failure of in childhood visual acuity visual acuity, decreased visual acuity, decreased, monocular visual field defect visual field defect, altitudinal visual field testing visual fields visual fields, constricted visual impairment visual loss visual loss, permanent visual loss, progressive visual loss, slow visual loss, slow-unilateral visual loss, sudden visual loss, sudden-unilateral visual loss, transient visual obscurations, transient visual symptoms vitamin D vitamin deficiency vitamin E vitamin supplementation vitamin therapy vitamin, multiple vitiligo vitreous opacities vitritis vomiting, recurrent Von Hippel Lindau von Willebrand factor voriconazole Waldenstrom's macroglobulinemia walking, difficulty with water channel antibodies watershed infarcts weakness weakness, acute weakness, episodic weakness, fluctuating weakness, focal weakness, generalized weakness, progressive weakness, proximal weakness, rapidly progressive weakness, unilateral weight gain weight loss weight management West Nile fever Western immunoblot test wheelchair wheezing Whipple's disease white matter disease white matter disease, pattern white matter disease, periventricular white matter disease, subcortical white matter disease, unilateral whites wide based gait word-finding difficulty work loss work performance workers' compensation workup wound healing, poor writers cramp writing xerophthalmia xerostomia x-ray, cervical spine x-ray, lumbar spine x-ray, spine x-ray, thoracic spine yawning movements zinc zolmitriptan

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