Sato, Masamichi, Sumito Inoue, Tsuyoshi Arao, Akira Igarashi, Keiko Yamauchi, Kento Sato, Hiroshi Nakano, and Masafumi Watanabe. “Undifferentiated Pleomorphic Sarcoma in the Anterior Mediastinum With a Rapidly Progressive Course: A Case Report”. EXCLI Journal 19 (August 17, 2020): 1161–1165. Accessed November 8, 2025. https://www.excli.de/excli/article/view/2694.