Omentum Gastrointestinal Stromal Tumor

**Semantic type:** Neoplastic Process

**Definition:** A gastrointestinal stromal tumor that arises from the omentum. This is an extragastrointestinal tumor, meaning that it does not arise directly from the gastrointestinal tract.

**Synonyms:** - Omentum EGIST - Omentum Extragastrointestinal Stromal Tumor - Omentum Gastrointestinal Stromal Tumor (GIST)