Acute rectocolitis following endoscopy in health check-up patients—glutaraldehyde colitis or ischemic colitis?

Purpose Acute rectocolitis is a rare complication that follows endoscopy. It could be caused by glutaraldehyde or ischemic injury. The clinical, endoscopic, radiological, and pathological features of glutaraldehyde-induced colitis may mimic those of ischemic colitis. We reported our experiences regarding this problem.