Late occurrence of perineal wound abscess years after total colectomy.

Seven patients presented with a large perineal abscess eight months to seven years after complete healing of the perineal wound following proctocolectomy. Six patients had had total proctocolectomies for ulcerative colitis and a seventh had undergone abdominoperineal resection for cancer. A typical clinical picture of perineal pain, fever, urinary tract complaints (including retention), and minimal local perineal findings was present. Prostatitis or a urinary tract infection was considered in five patients, but none of them responded to antibiotics. Ultrasound examination of the perineum may confirm the diagnosis; however, diagnostic and therapeutic surgical exploration of the healed perineum is recommended when this diagnosis is unclear.