Stage IIIA Primary Peritoneal Cancer AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage IIIA includes: T3a, N0/N1, M0. T3a: Primary peritoneal 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.)

**Synonyms:** - Stage IIIA Primary Peritoneal Cancer - Stage IIIA Primary Peritoneal Carcinoma AJCC v8