Pleural Well Differentiated Papillary Mesothelial Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rare, non-invasive, localized or multifocal mesothelial neoplasm that arises from the pleura. It is characterized by the presence of papillae with myxoid fibrovascular cores, lined by a single layer of mesothelial cells. The clinical course is usually indolent.

**Synonyms:** - Pleural WDPM - Pleural WDPMT - Pleural Well-Differentiated Papillary Mesothelial Tumor