title: [A case of acute subdural hematoma in the posterior fossa with idiopathic thrombocytopenic purpura].
abstract: Intracranial bleeding is one of fatal complications in idiopathic thrombocytopenic purpura although its reported incidence is low. A case of spontaneous acute subdural hematoma complicated with idiopathic thrombocytopenic purpura was reported. He was hospitalized complaining of sudden onset of headache and nasal bleeding without neurological deficit. CT scan revealed subdural hematoma in the posterior fossa especially below the tentorium cerebelli. Further hematological examination proved very low platelet count (1,000/mm3) and antiplatelet antibody in confirmation of a diagnosis of idiopathic thrombocytopenic purpura. As his neurological status was good, he was treated medically. His symptoms and platelet count improved gradually with corticosteroid therapy. Reviewing the literature, acute subdural hematoma with idiopathic thrombocytopenic purpura was quite rare and only three cases reported.
authors.affiliation: Department of Neurosurgery, Sendai National Hospital, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Saito
authors.forename: Y
authors.initials: Y
authors.lastname: Sakurai
authors.forename: H
authors.initials: H
authors.lastname: Uenohara
authors.forename: K
authors.initials: K
authors.lastname: Seki
authors.forename: S
authors.initials: S
authors.lastname: Imaizumi
authors.forename: R
authors.initials: R
authors.lastname: Katakura
authors.forename: H
authors.initials: H
authors.lastname: Niizuma
mesh_terms: D000208:Acute Disease; D000368:Aged; D002533:Cerebral Angiography; D003388:Cranial Fossa, Posterior; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D016553:Purpura, Thrombocytopenic, Idiopathic / Q000150:complications*; D014057:Tomography, X-Ray Computed