A 66-year-old man had a recurrent anal lesion following chemoradiation (Nigro protocol) treatment of squamous cell anal carcinoma. Metastatic workup including rectal ultrasound and CT scan was negative for nodal or distant disease.
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The patient was taken to the operating room for biopsy confirmation of recurrence. The lesion is shown at the 11:00 position with the patient in lithotomy.
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