anus, cases Week 277: Case 1 April 26, 2023 pathadmin 1. Presented by Peter Illei, M.D. and prepared by Jeffrey T. Schowinsky, M.D.This 50 year-old female patient with a history of squamous cell carcinoma of the anus, status post chemoradiation presented with worsening discomfort. She had persistent pain and an enlarged mass on PET scan for which she underwent an abdominal perineal resection.images/073106PI1a.jpgimages/073106PI1b.jpgimages/073106PI1c.jpgimages/073106PI1d.jpgimages/073106PI1e.jpgSmall cell carcinoma of the anusPoorly differentiated basaloid squamous cell carcinoma of the anusPoorly differentiated adenocarcinomaPoorly differentiated anal duct carcinoma Loading...