title: Symptomatic subdural hygroma as a complication of foramen magnum decompression for hindbrain herniation (Arnold-Chiari deformity).
abstract: Pseudomeningocele is a well known complication of foramen magnum decompression. Symptomatic subdural hygroma has not previously been described. We discuss a case of Arnold Chiari malformation type 1 in a 55-year-old Caucasian woman who underwent foramen magnum and upper cervical decompression and who developed a symptomatic subdural hygroma 2 weeks following surgery. This complication was most likely due to a technical error during surgery. It responded favourably to conservative therapy.
authors.affiliation: Department of Surgical Neurology, Morriston Hospital, Swansea, UK.
authors.forename: A
authors.initials: A
authors.lastname: Ranjan
authors.forename: I P
authors.initials: IP
authors.lastname: Cast
mesh_terms: D001099:Arachnoid / Q000293:injuries; D001139:Arnold-Chiari Malformation / Q000175:diagnosis / Q000601:surgery*; D019299:Decompression, Surgical; D004677:Encephalocele / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D005539:Foramen Magnum / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis* / Q000628:therapy; D013353:Subdural Effusion / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed