stage III ovarian low malignant potential tumor

The tumor is found in one or both ovaries or fallopian tubes, or is primary peritoneal cancer, and has spread outside the pelvis to other parts of the abdomen and/or to lymph nodes behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen). Stage III is divided into stages IIIA, IIIB, and IIIC. In stage IIIA, one of the following is true: (1) the tumor has spread to lymph nodes behind the peritoneum only; or (2) tumor cells that can be seen only with a microscope have spread to the surface of the peritoneum outside the pelvis, such as the omentum (a fold of the peritoneum that surrounds the stomach and other organs in the abdomen). The tumor may have spread to lymph nodes behind the peritoneum. In stage IIIB, the tumor has spread to the peritoneum outside the pelvis, such as the omentum, and the tumor in the peritoneum is 2 centimeters or smaller. The tumor may have spread to lymph nodes behind the peritoneum. In stage IIIC, the tumor has spread to the peritoneum outside the pelvis, such as the omentum, and the tumor in the peritoneum is larger than 2 centimeters. The tumor may have spread to lymph nodes behind the peritoneum or to the surface of the liver or spleen. Also called stage III ovarian borderline tumor.