Peritoneal Mesothelioma Not Caused by Asbestos Peritoneal mesothelioma tumors develop in the stomach lining or Www.0270469.Xyz the abdominal cavity. It is the second most common mesothelioma form. Asbestos fibers could cause irritation to the cells of your peritoneum and trigger mutations in the genes that cause mesothelioma. They can also cause fluid buildu...