Mesothelioma in the abdomen (peritoneal mesothelioma)

Mesothelioma in the abdomen (peritoneal mesothelioma)

Peritoneal mesothelioma starts in the peritoneum. This is the sheet of tissue covering and lining the internal organs in the abdomen. This sheet helps to protect the organs and allows them to move around within the abdomen. The peritoneum makes a fluid that helps to keep the abdominal organs moving freely and smoothly as we move around.