Malignant Pancreatic Gastrinoma

**Semantic type:** Neoplastic Process

**Definition:** A gastrin-producing neuroendocrine tumor that arises from the pancreas and is characterized by the inappropriate secretion of gastrin and the presence of vascular invasion. It metastasizes to other anatomic sites and is associated with Zollinger Ellison syndrome.

**Synonyms:** - Pancreatic G-Cell Carcinoma