Benign Mediastinal Soft Tissue Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A mesenchymal neoplasm that arises from the mediastinum and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential. Representative examples include lipoma, leiomyoma, and rhabdomyoma.

**Synonyms:** - Benign Soft Tissue Mediastinal Tumor - Benign Soft Tissue Neoplasm of Mediastinum - Benign Soft Tissue Neoplasm of the Mediastinum - Benign Soft Tissue Tumor of Mediastinum - Benign Soft Tissue Tumor of the Mediastinum