NCIt definition : Stage IIIA includes: IIIA1: T1/2, N1, M0; IIIA2: T3a, N0/N1, M0. T1: Ovarian cancer
with tumor limited to ovaries (one or both). T2: Ovarian cancer with tumor involving
one or both ovaries with pelvic extension below pelvic brim. T3a: Ovarian cancer with
microscopic extrapelvic (above the pelvic brim) peritoneal involvement with or without
positive retroperitoneal lymph nodes. N0: No regional lymph node metastasis. N1: Positive
retroperitoneal lymph nodes only (histologically confirmed). M0: No distant metastasis.
(AJCC 8th Ed.);