title: Subdural hematoma from a cavernous malformation.
abstract: OBJECTIVE
  To present a case of a cavernous malformation presenting with a subdural hematoma.
  
  
  METHODS
  A 27-year-old woman was admitted with progressively worsening headache, vomiting, weakness, and word-finding difficulties 1 week after she was discharged from an outside hospital, where she was managed conservatively for a presumed traumatic subdural hematoma. Computed tomography revealed an enlarging subacute left hemispheric subdural hematoma for which she underwent drill craniostomy. Postprocedural magnetic resonance imaging showed a posterior left temporal lobe mass consistent with a cavernous malformation juxtaposed with the subdural hematoma. Craniotomy for resection of the lesion was performed. She had an uncomplicated postoperative course and experienced a good recovery.
  
  
  RESULTS
  The signs and symptoms, diagnostic imaging, and intraoperative findings suggest that the subdural hematoma was caused by extralesional hemorrhage of the cavernous malformation, which is a rare finding associated with these malformations.
  
  
  CONCLUSIONS
  The clinical course, radiologic, and intraoperative findings suggest that the subdural hemorrhage was caused by extralesional hemorrhage of the cavernous malformation.
authors: Department of Neurosurgery, John Radcliffe Hospital, Oxford, United Kingdom.
authors: Anne J
authors: AJ
authors: Schmitt
authors: Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
authors: Alim P
authors: AP
authors: Mitha
authors: Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
authors: Rasha
authors: R
authors: Germain
authors: Division of Neuropathology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
authors: Jennifer
authors: J
authors: Eschbacher
authors: Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA. Electronic address: neuropub@dignityhealth.org.
authors: Robert F
authors: RF
authors: Spetzler
mesh_terms: D000328:Adult; D003399:Craniotomy / Q000379:methods*; D005260:Female; D020199:Hematoma, Subdural, Acute / Q000209:etiology* / Q000601:surgery*; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications* / Q000601:surgery*; D009422:Nervous System Diseases / Q000209:etiology; D019635:Neurosurgical Procedures / Q000379:methods*; D011184:Postoperative Period; D013702:Temporal Lobe / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
keywords: Cavernous malformation; Subdural hematoma