ileal pouch-anal anastomosis for diffuse benign cavernous vascular malformation, a case report

This is a case report of a rarely described pan-colonic benign cavernous vascular malformation. a 34-year-old man presented with recurrent gastrointestinal bleeding starting early in life. he was found to have multiple vascular proliferations in his rectosigmoid, cecum, liver, and small bowel mesentery on axial imaging and endoscopic evaluation. he underwent total proctocolectomy with ileal pouch-anal anastomosis (ipaa). pathological analysis of the vascular proliferations was consistent with diffuse benign cavernous malformations. the patient recovered well postoperatively and has not had recurrent bleeding. this is the first known case of total proctocolectomy with ipaa for diffuse benign cavernous vascular malformation. colorectal surgeons should be aware of this safe and effective treatment option for patients with pan-colonic vascular lesions.