It evolves when the linings of the lungs or the abdomen start to grow in a rapid and uncontrollable method. This problem is almost always due to exposure to asbestos and as a result of this it is often nicknamed asbestos cancers. If it impacts the lining of the belly it is referred to as peritoneal mesothelioma. In this article I will be outlining three potential symptoms for this type of malignancy and discussing the measures you should take if you notice these. The peritoneum actually offers two layers; the inner layer which is beside the abdominal organs and the outer layer which is next to the stomach wall.The first patient was enrolled on March 6, 2013. August 1 The data-cutoff date was, 2014, and the study was ongoing. Enrollment into extra cohorts, including patients who have not really received prior treatment, and a phase 2 extension had been ongoing . Study Assessments Adverse events were graded based on the Nationwide Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0 . At baseline, all patients underwent tumor imaging, which included either computed tomography or magnetic resonance imaging of the chest and abdomen.