Mediastinal lymph node metastasis associated with pulmonary metastasis is rarely seen in soft tissue sarcoma. A case is presented in which investigation of primary lung cancer (cT2N2M0) in a 78-year-old woman with a history of MFH of the left thigh revealed pulmonary metastasis of MFH accompanied by paratracheal (#2) and anterior mediastinal (#3a) lymph node metastases.