Abstract
Colorectal cancer is often discovered in patients with intestinal obstruction. A case in which colorectal cancer was treated by radical surgery after transanal decompression and cytomegalovirus (CMV) enteritis was subsequently found is reported. A 68-year-old man with a chief complaint of constipation and abdominal bloating was diagnosed with intestinal obstruction due to colorectal cancer. Transanal decompression with a colorectal tube was performed for two weeks, followed by radical surgery with anterior colorectal resection (D3 lymph node dissection). Decompression allowed surgery to be performed safely.
The resected specimen showed a large ulceration at the proximal side of the tumor, and histopathological examination of this site showed CMV enteritis. Upper GI endoscopy was later performed because of postoperative tarry stools postoperatively, and reflux esophagitis and multiple duodenal ulcers were diagnosed. Biopsy of these areas showed no evidence of CMV infection. The symptoms and findings improved with a proton pump inhibitor alone, and the patient was discharged. This rare case of colorectal cancer with CMV enteritis was described.
