A 78-year-old man underwent surgical repair of an abdominal aoic aneurysm. Postoperatively he developed left lower quadrant pain along with urgency to defecate and had frequent episodes of passage of bright red blood per rectum. He has a history of prostate cancer for which he had received radiation therapy several years ago. Colonoscopy findings of the patient are shown below.X ray abdomen was also done. What is the most likely cause of his symptoms?
Correct Answer: Ischemic colitis
Description: 1st image shows ischemic colitis with patchy mucosal edema, subepithelial hemorrhage, and cyanosis. 2nd image shows the classical thumb printing sign. Most impoant precipitating factor - Surgery in an old individual Most common surgery leading to it - Repair of abdominal aoic aneurysm Colonoscopy findings show haemorrhagic ulcers with sharp demarcation between normal and ischemic mucosa.
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