Ampulla of Vater Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign, premalignant, or malignant neoplasm that affects the ampulla of Vater.

**Synonyms:** - Ampulla of Vater Tumor - Neoplasm of Ampulla of Vater - Neoplasm of the Ampulla of Vater - Tumor of Ampulla of Vater - Tumor of the Ampulla of Vater