[Angiodysplasia of the colon]

Area of Science:

• Vascular Surgery
• Gastroenterology
• Colorectal Surgery

Background:

• Congenital vascular abnormalities are an infrequent cause of ischemic colitis.
• Differentiating vascular-related colitis from other etiologies is clinically significant.

Observation:

• A patient presented with symptoms suggestive of colitis.
• Diagnostic workup included rectosigmoidoscopy, barium study, and rectal biopsy, indicating an ischemic origin.
• Selective angiography revealed inferior mesenteric artery dilation and angiodysplasia.

Findings:

• The congenital vascular abnormality led to ischemia of the descending colon and rectosigmoid.
• Surgical management involved ligation of the inferior mesenteric artery and bowel resection with anastomosis.
• Histopathologic and angiographic findings were crucial for diagnosis.

Implications:

• This case underscores the importance of considering vascular anomalies in unexplained ischemic colitis.
• Rectosigmoidoscopic findings can mimic other conditions like Crohn's disease or amoebiasis.
• Accurate diagnosis through advanced imaging and pathology is vital for appropriate treatment of vascular-related bowel ischemia.