Successful coil embolization of a ruptured aneurysm of the arc of Riolan artery

Radiology Case Reports

article

Hirotatsu Sato¹  Tetsuo Sonomura¹  Hironobu Ihira¹  Akira Ikoma¹  Nozomu Shima¹  Tomoya Fukui¹  Kodai Fukuda¹  Shota Ueda¹  Ryuta Okuhira¹  Nobuyuki Higashino¹  Atsufumi Kamisako¹  Ryota Tanaka¹  Takao Koyama¹  Hiroki Minamiguchi¹ 

[1] The Department of Radiology, Wakayama Medical University

关键词: Visceral artery aneurysm;    Arc of Riolan;    Segmental arterial mediolysis;   

DOI  :  10.1016/j.radcr.2022.10.096

学科分类：生物化学工程

来源: University of Washington * Department of Radiology

【 摘 要 】

The arc of Riolan (AOR) is an anastomosis between the middle and left colic arteries. Aneurysms of the AOR are very rare visceral artery aneurysms. A 44-year-old man presented with abdominal pain and loss of consciousness. Computed tomography and angiography showed hemorrhagic ascites around the liver and spleen. An irregularly dilated artery was visible within a hematoma in the upper left region of the abdomen, consistent with a ruptured pseudoaneurysm of the AOR. Transcatheter arterial embolization was performed with microcoils. The patient's abdominal pain disappeared after embolization, and no symptoms of intestinal ischemia were observed. To our knowledge, this is the first case of an AOR aneurysm with AOR dilation due to dissection of the celiac artery that was successfully treated by coil embolization.

【 授权许可】

CC BY|CC BY-NC-ND