Pineal Region Yolk Sac Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare yolk sac tumor that arises from the pineal region.

**Synonyms:** - Endodermal Sinus Tumor of Pineal Region - Endodermal Sinus Tumor of the Pineal Region - Pineal Endodermal Sinus Neoplasm - Pineal Endodermal Sinus Tumor - Pineal Region Endodermal Sinus Neoplasm - Pineal Region Endodermal Sinus Tumor - Pineal Region Yolk Sac Neoplasm - Primary Pineal Region Yolk Sac Tumor - Yolk Sac Tumor of Pineal Region - Yolk Sac Tumor of the Pineal Region