title: Abrupt exacerbation of acute subdural hematoma mimicking benign acute epidural hematoma on computed tomography--case report.
abstract: A 75-year-old male was hit by a car, when riding a bicycle. The diagnosis of acute epidural hematoma was made based on computed tomography (CT) findings of lentiform hematoma in the left temporal region. On admission he had only moderate occipitalgia and amnesia of the accident, so conservative therapy was administered. Thirty-three hours later, he suddenly developed severe headache, vomiting, and anisocoria just after a positional change. CT revealed typical acute subdural hematoma (ASDH), which was confirmed by emergent decompressive craniectomy. He was vegetative postoperatively and died of pneumonia one month later. Emergent surgical exploration is recommended for this type of ASDH even if the symptoms are mild due to aged atrophic brain.
authors: Department of Neurosurgery, Chiba Rosai Hospital, Japan.
authors: K
authors: K
authors: Kato
authors: O
authors: O
authors: Watanabe
authors: Y
authors: Y
authors: Ozawa
mesh_terms: D000063:Accidents, Traffic; D000208:Acute Disease; D000368:Aged; D001284:Atrophy; D001927:Brain Diseases / Q000473:pathology; D001929:Brain Edema / Q000175:diagnosis; D002543:Cerebral Hemorrhage / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006407:Hematoma, Epidural, Cranial / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006408:Hematoma, Subdural / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed