Intestinal obstruction due to diffuse peritoneal fibrosis at 2 years after the successful treatment of malignant peritoneal mesothelioma with intraperitoneal mitoxantrone.

A 44-year-old man who had achieved a complete remission of malignant peritoneal mesothelioma after the intraperitoneal administration of 25 mg/m2 mitoxantrone presented with clinical and radiological signs of intestinal obstruction suggestive of recurrent disease at about 2 years following the initial treatment. However, laparotomy revealed extensive adhesive fibrosis but no sign of malignant mesothelioma. The peritoneal complications of intraperitoneal cytostatic treatment are discussed.