2 cm or less in greatest dimension N1 Single regional lymph node metastasis in the true pelvis (hypogastric, obturator, external iliac or presacral lymph node) N2 Single lymph node metastasis ...

Pelvic lymph nodes are situated in the lower abdomen in the area that contains the hip bones, bladder, rectum, and reproductive organs. Pelvic lymph nodes are only seen in imaging studies.

Stage 3 ovarian cancer has spread outside the pelvis into the abdominal cavity or to lymph nodes. Treatment includes surgery and chemotherapy. Stage 3A1 means the cancer has spread to the lymph nodes ...