Retroperitoneal Germ Cell Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare germ cell tumor that arises from the retroperitoneum.

**Synonyms:** - Germ Cell Neoplasm of Retroperitoneum - Germ Cell Neoplasm of the Retroperitoneum - Germ Cell Tumor of Retroperitoneum - Germ Cell Tumor of the Retroperitoneum - Primary Retroperitoneal Germ Cell Tumor - Retroperitoneal Germ Cell Neoplasm