Leiomyosarcoma as a mediastinal tumor

Abstract

Leiomyosarcoma as a mediastinal tumor is so rare that no more than 8 cases have been reported Japan, respectively. A 67-year-old male was admitted to another hospital with complaints of fever up and general fatigue. Chest X-ray revealed a mediastinal tumor, and he was admitted to our hospital. The density of the tumor was heterogeneous; that is, multiple high-density funiculi were seen in the fatty density. We therefore suspected that he had a thymoma, and performed an operation. Because the tumor was encapsulated and nearly non-invasive, extripation via a median skin incision and median sternotomy was performed successfully. Histologically, it was compatible with sarcoma and a definitive diagnosis of leiomyosarcoma was made based on immunology.