Peritoneal Mesothelioma Not Caused by asbestos settlement Malignant peritoneal mesothelioma develops in the lining of the abdomen. It is less prevalent than pleural mesothelioma. it is more prevalent in women than men. People with peritoneal mesothelioma often exhibit vague symptoms, such as abdominal pain constipation, weight loss or diarrhoea. A mesothelio...