Gestational Trophoblastic Neoplasm by AJCC v8 Stage

**Semantic type:** Neoplastic Process

**Definition:** A term that refers to the staging of a gestational trophoblastic neoplasm according to the American Joint Committee on Cancer, 8th edition. This classification applies to the following neoplasms: invasive hydatidiform mole, gestational choriocarcinoma, placental site trophoblastic tumor, and epithelioid trophoblastic tumor. Complete and partial hydatidiform moles are not included in this classification. The current FIGO classification includes an anatomic stage designated by Roman numeral I, II, III, or IV, followed by the risk factor score expressed in Arabic numerals (e.g., Stage II: 4, Stage IV: 9). (from AJCC 8th Ed.)