Colorectal malignancies associated with inflammatory bowel (IBD) disease

Background: Individuals with ulcerative colitis (UC) and Crohn's disease (CD) are at increased risk of developing colorectal cancer (CRC). The risk is increasing with long-standing and extensive colitis. Aims and methods: A retrospective study was made of both common and unusual parameters relating to the clinical features and behaviour of colorectal malignancies in 822 IBD patients since 1987. Results: Eleven patients were operated on due to colorectal malignancy. The average age at the onset of UC/CD was 34.1 years (min.11, max. 61); the inflammatory process involved the transvers colon in 4, and was located b…