title: An atypical case of spontaneous intracranial hypotension.
abstract: Spontaneous intracranial hypotension (SIH) is a well-known clinical syndrome associated with the typical magnetic resonance imaging findings of pachymeningeal enhancement, downward cerebral displacement and subdural fluid collections. Atypical clinical presentations are not infrequent and often misdiagnosed. We report a case of SIH presenting with thunderclap headache and CT scan evocative of subarachnoid hemorrhage. We discuss the unusual presentation of this patient and the differential diagnosis of this case.
authors.affiliation: Dipartimento di Neuroscienze, Ospedale A. Manzoni, Via dell'Eremo 9/11, 23900 Lecco, Italy. r.balgera@ospedale.lecco.it
authors.forename: R
authors.initials: R
authors.lastname: Balgera
authors.forename: A
authors.initials: A
authors.lastname: Rigamonti
authors.forename: G
authors.initials: G
authors.lastname: Sozzi
authors.forename: E
authors.initials: E
authors.lastname: Agostoni
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D005260:Female; D051270:Headache Disorders, Primary / Q000209:etiology* / Q000503:physiopathology; D006547:Hernia / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D019585:Intracranial Hypotension / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000503:physiopathology; D017770:Lifting / Q000009:adverse effects; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging*; D013346:Subarachnoid Space / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014636:Valsalva Maneuver / Q000502:physiology