RT Journal Article
SR Electronic
T1 Caudate haemorrhage caused by pseudoaneurysm of accessory middle cerebral artery
JF BMJ Case Reports
FD BMJ Publishing Group Ltd
SP bcr2015213335
DO 10.1136/bcr-2015-213335
VO 2015
A1 Teramoto, Shinichiro
A1 Tokugawa, Joji
A1 Nakao, Yasuaki
A1 Yamamoto, Takuji
YR 2015
UL http://casereports.bmj.com/content/2015/bcr-2015-213335.abstract
AB A 68-year-old man experienced a right caudate haemorrhage with intraventricular haemorrhage. Although a subarachnoid haemorrhage was not shown clearly, our investigation demonstrated an aneurysm-like vascular pouch located in the anomalous vessel arising from the A2 segment of the right anterior cerebral artery. Rupture of the vascular pouch was considered to be the cause of the caudate haemorrhage. Neck clipping was performed. In intraoperative observation, the anomalous vessel was diagnosed as a right accessory middle cerebral artery. Histopathology of the saccular wall showed only an adventitia and a fibrin layer, indicating a pseudoaneurysm. We routinely perform detailed vascular evaluation for any cerebrovascular disease. A meticulous vascular survey makes it possible to obtain valuable clues in cases such as caudate haemorrhage due to pseudoaneurysm of the accessory middle cerebral artery, leading to prevention of rebleeding.