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Updated: Jun 8, 2026

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
A case of rectal obstruction caused by bilateral internal iliac artery aneurysms
Ai Sugimoto1, Manabu Haga, Shinya Motohashi
1Center for Stroke and Cardiovascular Disease, Niigata City General Hospital, Chuo-ku, Niigata-City, Niigata, Japan.
Abstract:
In this article, we report a rare case of rectal obstruction caused by bilateral internal iliac artery aneurysms that required open surgical repair. A 73-year-old man was admitted to our hospital complaining of abdominal pain and persistent constipation for >1 month. Computed tomography demonstrated bilateral internal iliac artery aneurysms, 5.0 and 7.0 cm each in diameter, which occupied the intrapelvic space. An urgent surgery was performed to reduce the volume of the aneurysms and release the obstructed rectum. The postoperative course was uneventful, in which he had good evacuation. Aneurysms in the iliac region can be a good indication for the use of newly developed endovascular devices; however, open surgery should be considered without delay to avoid ileus or subileus symptoms when the aneurysms cause space-occupying complications.
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