Abstract:
Endoscopic ultrasonography (EUS) was helpful for the diagnosis of rectal cancer associated with ulcerative colitis. The patient was a 38-year-old Japanese man with a 19-year history of relapsing-remitting type ulcerative colitis involving the entire colon. Routine colonoscopy revealed multiple polypoid prominences in the upper portion of the rectum. EUS revealed a hypoechoic mass in the submucosa beneath and around the polypoid lesion on the most oral side. Signet ring cells were found in a biopsy specimen from this lesion. Subtotal colectomy was performed. A depressed lesion was observed around the prominence on the most oral side; histologically, this lesion was poorly differentiated mucinous and signet ring cell carcinoma extending into the subserosa. The polypoid lesion on the most anal side was well differentiated adenocarcinoma, which was limited to the mucosa. Our findings suggest that EUS is helpful for detecting invasive cancer associated with ulcerative colitis.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: April 22, 1998 / Accepted: January 22, 1999
Rights and permissions
About this article
Cite this article
Shimizu, S., Myojo, S., Nagashima, M. et al. A patient with rectal cancer associated with ulcerative colitis in whom endoscopic ultrasonography was useful for diagnosis. J Gastroenterol 34, 516–519 (1999). https://doi.org/10.1007/s005350050306
Issue Date:
DOI: https://doi.org/10.1007/s005350050306