Dissociation between the severity of cerebrospinal fluid hypovolemia and MRI findings.

摘要

Cerebrospinal fluid (CSF) hypovolemia (spontaneous spinal CSF leak and intracranial hypotension) presents with various symptoms including orthostatic headache, neck stiffness, tinnitus, hypacusia, photophobia and nausea [1]. These symptoms worsen within 15 min after sitting or standing. Meningeal enhancement is frequently observed [2], We present a case of CSF hypovolemia with dissociation between its severity and the MRI findings.