[Pseudomyxoma peritonei; a rare tumour that can be treated with cytoreductive surgery and hyperthermic intraperitoneal chemotherapy].

Three patients, men aged 47 and 30 and a woman aged 48 years, presented with appendicitis-like symptoms, progressive abdominal distension, and an ovarian pelvic mass, respectively. All three were diagnosed with pseudomyxoma peritonei. Treatment consisted of cytoreductive surgery followed by hyperthermic intraperitoneal chemotherapy (HIPEC). After a mean follow-up of 64 months (range: 19-89) after initial treatment, the second patient had died of disease progression but the other two were alive and free of disease. Pseudomyxoma peritonei is a rare disease, characterised by progressive intraperitoneal accumulation of mucinous ascites, produced by a mucinous tumour mass on the peritoneal surfaces. The primary tumour is usually a mucinous adenoma of the appendix. Treatment by cytoreductive surgery and HIPEC can result in a 5-year survival rate of more than 80%, depending on the histopathology and the completeness of the cytoreduction. Recognising pseudomyxoma peritonei in an early stage, when complete cytoreduction is still achievable, may result in a considerable improvement in survival.