Mesothelioma cancer which influences the lining of abdominal cavity is called peritoneal mesothelioma. About one-fifth of all the cases of mesothelioma cancer reported are found to be peritoneal mesothelioma. More than women, men become victims of this malady and it is caused due to exposure to asbestos. The signs and symptoms of the disease start appearing only twenty or thirty years after being exposed to asbestos. Timely diagnosis and treatment is the only way to extend the lives of the victims. A tissue biopsy is an effective way of diagnosis, whereas other methods like CT scan may give complicated results.