Chronic perineal fistula as a late failure manifestation of pseudomyxoma peritonei syndrome.

Pseudomyxoma peritonei syndrome (PMP) is a rare but fascinating entity in surgical oncology. It consists of the accumulation of mucus in the peritoneal cavity, sometimes in huge amounts, in most of the cases after rupture of an appendiceal tumor. The diagnosis and management of PMP has changed significantly in the past 15 years, with the institution of an aggressive therapeutic combination: cytoreductive surgery and intraperitoneal perioperative chemotherapy. Few reports deal with the late manifestations and complications at endstage of the disease. The cases presented here are unique in that they illustrate a late 'failure' in the perianal area in three patients with long-term PMP.