# Lower Extremity Arterial Occlusive Disease and Abdominal Aortic Aneurysm in Crohn’s Disease: A Case Report

## TL;DR

A man with Crohn’s disease developed rare arterial complications, including an abdominal aortic aneurysm, which was successfully treated with a minimally invasive procedure.

## Contribution

This case report highlights the rare occurrence of abdominal aortic aneurysm as an extra-intestinal manifestation of Crohn’s disease.

## Key findings

- A 42-year-old Crohn’s disease patient developed an abdominal aortic aneurysm and lower extremity arterial occlusions.
- Endovascular aneurysm repair led to significant aneurysm shrinkage and seven years of remission in the patient’s Crohn’s disease.

## Abstract

Crohn’s disease (CD) is a type of inflammatory bowel disease that primarily affects the small intestine and colon. Patients with CD may develop extra-intestinal manifestations; however, vascular involvement has been rarely reported. Herein, we present the case of a patient with CD who developed multiple arterial complications, including lower extremity arterial occlusions and an abdominal aortic aneurysm (AAA).

A 42-year-old man with CD presented with back pain. He also had a history of bilateral iliac artery occlusions that were refractory to revascularization procedures. Enhanced computed tomography revealed an irregularly shaped AAA with a maximum axial diameter of 72 × 52 mm. The patient underwent endovascular aneurysm repair (EVAR) for the AAA via the left axillary access, and the postoperative course was uneventful. At seven years postoperatively, significant shrinkage of the aneurysm was maintained, and his CD remained in remission.

The present case suggests that patients with CD can develop AAA as a rare extra-intestinal manifestation. Significant aneurysm shrinkage was achieved following EVAR.