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Spontaneous intracranial hypotension is a condition characterized by low CSF volume secondary to leakage through a dural defect with no identifiable cause. Patients classically present with orthostatic headaches, but this symptom is not specific to spontaneous intracranial hypotension, and initial misdiagnosis is common. The most prominent features of spontaneous intracranial hypotension on intracranial MR imaging include �brain sag� and diffuse pachymeningeal enhancement, but these characteristics can be seen in several other conditions. Understanding the clinical and imaging features of spontaneous intracranial hypotension and its mimickers will lead to more prompt and accurate diagnoses. Here we discuss conditions that mimic the radiologic and clinical presentation of spontaneous intracranial hypotension as well as other disorders that CSF leaks can imitate. |
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atypical cerebrospinal fluid,leak cerebrospinal fluid,pressure cerebrospinal fluid,pressure low differential diagnosis epidural blood patch headache headache,positional hemosiderosis of CNS,superficial meningeal enhancement mimics misdiagnosis MRI,abnormal neurologic disease,multiple pachymeningitis,cranial pituitary,apoplexy primary intracranial hypotension prognosis sagging of the brain spontaneous remission treatment of neurologic disorder
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