title: Aneurysm in the penetrating artery of the distal middle cerebral artery presenting as intracerebral haemorrhage.
abstract: We are recording the first reported case of a 20-year-old man with an intracerebral haemorrhage due to a ruptured aneurysm, which arose from a penetrating artery of the distal middle cerebral artery (MCA; M4 segment). Excision of the aneurysm was successfully achieved via a right pterional approach. The follow-up angiogram demonstrated filling of the parent vessel and no residual aneurysm. This report illustrates the angiographical finding of a penetrating artery aneurysm of the distal MCA and summarizes the previous reports to discuss their pathological and clinical characteristics.
authors.affiliation: Department of Neurosurgery, College of Medicine, Pochon CHA University, Sungnam, South Korea. jyahn@cha.ac.kr
authors.forename: J Y
authors.initials: JY
authors.lastname: Ahn
authors.forename: I B
authors.initials: IB
authors.lastname: Han
authors.forename: J Y
authors.initials: JY
authors.lastname: Joo
mesh_terms: D000328:Adult; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D019635:Neurosurgical Procedures; D013702:Temporal Lobe / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures