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A 60 year old female underwent total colonoscopy for recurrent painless haematochezia. She reported no past medical history of abdominal or anorectal symptoms. Physical examination was unremarkable. Digital rectal examination detected a firm, non‐tender mobile nodule in the posterior upper anal canal. Laboratory studies showed no anaemia or abnormal coagulation profile. Anal margin examination was normal. Mild diverticulosis was found in the sigmoid area. A polypoid protuberant polychromatic lesion of 10 mm diameter was noted just above the dentate line at the level of the internal haemorrhoids (fig 11).
What is the diagnosis?
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