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Updated: Jun 12, 2026

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Acute retroperitoneal bleeding due to inferior mesenteric artery aneurysm: case report
P Pérez-Vallecillos1, R Conde-Muíño, I Segura-Jiménez
1Division of Colorectal Surgery, Department of General Surgery, HUVN. Av. Fuerzas Armadas s/n., 18014 Granada, Spain.
Background:
Visceral artery aneurysms (VAA), although uncommon, are increasingly being detected. We describe a case of spontaneous retroperitoneal hemorrhage from a ruptured IMA aneurysm associated with stenosis of the superior mesenteric artery (SMA) and celiac trunk, successfully treated with surgery.
Methods:
A 65-year-old man presented with abdominal pain and hypovolemic shock. Abdominal CT scan showed an aneurysm of the inferior mesenteric artery with retroperitoneal hematoma. In addition, an obstructive disease of the superior mesenteric artery and celiac axis was observed.
Results:
Upon emergency laparotomy a ruptured inferior mesenteric artery aneurysm was detected. The aneurysm was excised and the artery reconstructed by end-to-end anastomosis.
Conclusions:
This report discusses the etiology, presentation, diagnosis and case management of inferior mesenteric artery aneurysms.
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