title: De novo aneurysm on the posterior cerebral artery: a case report and literature review.
abstract: De novo aneurysm formation is a rare entity of cerebral aneurysms. The authors describe a 19-year-old man presenting with spontaneous intracerebral hemorrhage of unknown etiology. The initial cerebral angiography revealed no identifiable vascular lesion. A few weeks following a surgical evacuation of the hematoma, a tiny saccular aneurysm was incidentally found on the distal posterior cerebral artery (PCA) remote from the site of the primary ictus. Several rationales indicated that it was compatible with a cerebral aneurysm of infective etiology. The aneurysm was successfully treated by antibiotic therapy alone. To the authors' knowledge, de novo aneurysm on the PCA has rarely been reported.
authors: Division of Neurosurgery, Department of Surgery, Faculty of Medicine SirirajHospital, Mahidol University, Bangkok, Thailand.
authors: Ekawut
authors: E
authors: Chankaew
authors: Bunpot
authors: B
authors: Sitthinamsuwan
authors: Prajak
authors: P
authors: Srirabheebhat
authors: Thaweesak
authors: T
authors: Aurboonyawat
authors: Sarun
authors: S
authors: Nunta-aree
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002439:Cefotaxime / Q000627:therapeutic use; D002543:Cerebral Hemorrhage / Q000209:etiology; D003023:Cloxacillin / Q000627:therapeutic use; D006406:Hematoma / Q000209:etiology / Q000601:surgery; D006801:Humans; D033162:Incidental Findings; D002532:Intracranial Aneurysm / Q000175:diagnosis* / Q000188:drug therapy; D008297:Male; D020769:Posterior Cerebral Artery / Q000000981:diagnostic imaging*; D011859:Radiography; D055815:Young Adult
chemical_list: D000900:Anti-Bacterial Agents; D002439:Cefotaxime; D003023:Cloxacillin