Gastrointestinal Stromal Tumors

**Definition:** All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA).

**Tree numbers:** - C04.557.450.565.370 - C06.301.371.308 - C06.405.249.308

**Synonyms:** - Gastrointestinal Stromal Neoplasm - Gastrointestinal Stromal Neoplasms - Gastrointestinal Stromal Tumor