label: Mediastinal Soft Tissue Neoplasm
label_lc: mediastinal soft tissue neoplasm
description: "A benign or malignant mesenchymal neoplasm of the mediastinum. Representative examples of benign mediastinal soft tissue neoplasms include chondroma, leiomyoma, lipoma, and rhabdomyoma.  Representative examples of malignant mediastinal soft tissue neoplasms include angiosarcoma, leiomyosarcoma, liposarcoma, osteosarcoma, rhabdomyosarcoma, and synovial sarcoma."