title: Delayed rupture of pre-existing cerebral aneurysm in a young patient with minor head trauma.
abstract: An intracranial saccular aneurysm is not commonly diagnosed in a patient with head injury. We present a patient with a history of minor head trauma and a CT scan of the brain revealing minimal subarachnoid hemorrhage 17 days prior to admission, complaining of severe headache, dysarthria and focal right limb seizures 3 hours prior to admission. A traumatic aneurysm was suspected based on clinical history and radiological findings including hematoma in the falx region on a CT scan of the brain and an aneurysm of the pericallosal artery on magnetic resonance angiography and four-vessel cerebral angiography. However, at craniotomy, an intracranial non-traumatic saccular aneurysm at the bifurcation of the pericallosal artery was found. The patient recovered fully after successful clipping the aneurysm.
authors.affiliation: Department of Neurological Surgery, Tri-Service General Hospital, 325, Cheng-Kung Road section 2, National Defense Medical Center, Taipei 114, Taiwan, Republic of China.
authors.forename: Cheng-Ta
authors.initials: CT
authors.lastname: Hsieh
authors.forename: En-Yuan
authors.initials: EY
authors.lastname: Lin
authors.forename: Tung-Han
authors.initials: TH
authors.lastname: Tsai
authors.forename: Yung-Hsiao
authors.initials: YH
authors.lastname: Chiang
authors.forename: Da-Tong
authors.initials: DT
authors.lastname: Ju
mesh_terms: D000293:Adolescent; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging* / Q000601:surgery; D002533:Cerebral Angiography; D006259:Craniocerebral Trauma / Q000000981:diagnostic imaging*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging / Q000601:surgery; D013997:Time Factors; D014057:Tomography, X-Ray Computed