Related Experiment Video
Updated: Oct 28, 2025

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
A rare case of left colic branch aneurysm presenting with rupture and intra-abdominal hemorrhage
Emilie C Robinson1, Lia Jordano1, Jason Q Alexander1
1Division of Vascular and Endovascular Surgery, Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minn.
Abstract:
An aneurysm of the inferior mesenteric artery is a rarely described clinical presentation. We have presented the case of a ruptured aneurysm originating from a branch of the inferior mesenteric artery that might represent an aneurysm of the left colic artery or the arc of Riolan. Aneurysms of this anatomic location can develop secondary to mesenteric occlusive disease, alterations in mesenteric blood flow from previous operations, or connective tissue disease. In the present case, a patient with a ruptured inferior mesenteric artery branch aneurysm had presented with intra-abdominal hemorrhage, which was successfully treated with endovascular embolization.
Related Concept Videos
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Esophageal Varices-I: Introduction
Appendicitis-I: Introduction
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Aneurysm I: Introduction
Esophageal Perforation-II: Clinical Manifestations and Management
Clinical Manifestations:

