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Bleeding in rupture of the uterus associated with a large broad ligament hematoma is controlled most simply by :

A 57-year-old man presents to the office with complaints of perianal pain during defecation and perineal heaviness for 1 month. He also complains of discharge around his anus, and bright red bleeding during defecation. The patient provides a history of having a sexual relationship with other men without using any methods of protection. The physical examination demonstrates edematous verrucous anal folds that are of hard consistency and painful to the touch. A proctosigmoidoscopy reveals an anal canal ulcer with well defined, indurated borders on a white background. A biopsy is taken and the results are pending. What is the most likely diagnosis?