Left & Center: Two small, hypopigmented polypoid lesions seen at retroflexion in the rectum in a 71 year-old man undergoing routine colon screening. Histologically the lesions were squamous papillomas, with mild to moderate dysplasia, and features consistent with Human Papilloma Virus (HPV) infection.
Right: Sessile bland polypoid lesion seen at retroflexion in the rectum of a 47 year old man. Histology was consistent with squamous papilloma having features of HPV.
See also Squamous Papilloma.
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