Mesothelial Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A neoplasm characterized by the proliferation of neoplastic mesothelial cells. It usually arises from the pleura or peritoneum. This category includes malignant mesothelioma, adenomatoid tumor (benign mesothelioma), well differentiated papillary mesothelial tumor, and multicystic mesothelioma.

**Synonyms:** - Mesothelial Neoplasms - Mesothelial Tumor - Mesothelioma - Mesothelioma - Mesothelioma - Mesothelioma - Mesothelioma - Mesothelioma - Mesothelioma, NOS - mesothelioma