<prompt> Risk of malignancy in ulcerative colitis is more in -a Onset in childhoodb Extensive involvement of colonc Disrupted architecture with crypt abscessesd Pseudopolypse Recurrence after treatmentacaadab  <response>: Risk Factors for Cancer in Ulcerative Colitis patient The duration of colitis The extent of colonic involvement The presence of concomitant PSC and family history of CRC regardless of the family history of IBD Pancolitis disease extending proximal to the splenic flexure and disease diagnosed at a young age UC-related CRC tends to be multicentric and evenly distributed throughout the colon. Tumour tend to be infiltrative, highly aggressive and poorly differentiated. No significant difference between sporadic and UC-related CRC with respect to prognosis. 