Peritonitis is a condition in which the peritoneum, a membrane that covers the abdominal wall and the organs within the ...

This hypothesis is irritation of the peritoneum, a thin membrane that covers the inner wall of the abdomen. The peritoneum is made up of two layers, which protect the organs located in the abdomen.

But your doctor might not be able to tell you the exact stage until you have surgery. Doctors use the International Federation of Gynecology and Obstetrics (FIGO) staging system to stage cancers in ...