Case ReportsConcomitant carcinoid tumor and papillary urothelial neoplasm of low malignant potential in a patient with Crohn's disease: a case reportOwczarek, Danutaa; Cibor, Dorotaa; Szczepański, Wojciechb; Kosowski, Bogdanc; Mach, TomaszaAuthor Information Departments of aGastroenterology bPathomorphology, Jagiellonian University, Medical College cPathomorphology Section, Rydygier Hospital, Krakow, Poland Correspondence to Dorota Cibor, ul. Wroclawska 68/49, 30-017 Krakow, Poland Tel: +48 50 315 6918; fax: +48 12 424 7380; e-mail: [email protected] Received 27 January 2008 Accepted 29 March 2008 European Journal of Gastroenterology & Hepatology: December 2008 - Volume 20 - Issue 12 - p 1231-1234 doi: 10.1097/MEG.0b013e328302f484 Buy Metrics Abstract Patients with a long-term history of inflammatory bowel diseases show an increased risk of developing colorectal cancers. In the case of Crohn's disease, such an increased risk is also associated with other malignant tumors. The report presents a very rare case of a concomitant carcinoid tumor and papillary urothelial neoplasm of low malignant potential in a 35-year-old patient with diagnosed Crohn's disease complicated by an enterovesical fistula. The carcinoid tumor and papillary urothelial neoplasm of low malignant potential were diagnosed by postoperative histopathology. In patients with Crohn's disease, concomitant occurrence of various malignancies may be observed even earlier in life. © 2008 Lippincott Williams & Wilkins, Inc.