COLON - Carcinoma and polyps

The colon has been opened to show, in the lower part of the specimen, a 5cm carcinoma extending around the whole circumference of the bowel. The lesion is ulcerated, and one imagines that it would have produced a degree of obstruction. Above the tumour there are a number of polyps; some of these are pedunculated, others sessile. The polyps may be adenomatous (pre-cancerous) but, in the absence of histological examination, one could not be sure of this (histology would have to reveal dysplasia). The redness of the polyps is in keeping with their vascularity.