Mediastinal Mesenchymal Tumor, also known as soft tissue tumour of mediastinum, is related to mesenchymal cell neoplasm and thymus sarcomatoid carcinoma. An important gene associated with Mediastinal Mesenchymal Tumor is SS18 (SS18 Subunit Of BAF Chromatin Remodeling Complex). Related phenotype is Increased shRNA abundance (Z-score > 2).