Diffuse Malignant Mesothelioma

**Semantic type:** Neoplastic Process

**Definition:** A diffuse malignant neoplasm that arises from mesothelial cells, usually in the pleura or peritoneum. Histologic variants include biphasic, epithelioid, sarcomatoid, and desmoplastic mesothelioma.

**Synonyms:** - Malignant Diffuse Mesothelioma