title: Non-traumatic subdural hygroma.
abstract: Subdural hygroma consists of a cerebrospinal fluid-like subdural fluid collection with a low oncotic pressure in comparison with venous blood. Its etiology and pathophysiology, which may be different from other subdural fluid collections, are reviewed. We report the clinical history of a 80-year-old woman with a bilateral frontal subdural hygroma. Serial CT-scanning demonstrated a rapid increase in volume after two years of slow evolution. In our patient dehydration may have been the triggering factor. The course of non-traumatic subdural hygroma is not well known. This report illustrates that subdural hygroma can have a dramatic evolution and that therapeutic decisions in these patients should be based on repeated CT-scans.
authors.affiliation: Dept. of Neurology, University Hospital, Vrije Universiteit Brussel, Belgium.
authors.forename: R A
authors.initials: RA
authors.lastname: Dierckx
authors.forename: M
authors.initials: M
authors.lastname: Bruyland
authors.forename: Z
authors.initials: Z
authors.lastname: Nuyens
authors.forename: T
authors.initials: T
authors.lastname: Stadnik
authors.forename: C
authors.initials: C
authors.lastname: Solheid
authors.forename: G
authors.initials: G
authors.lastname: Ebinger
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003128:Coma / Q000209:etiology; D004322:Drainage; D005260:Female; D006801:Humans; D008581:Meningitis / Q000000981:diagnostic imaging*; D013353:Subdural Effusion / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D014057:Tomography, X-Ray Computed