Fine‐needle aspiration cytology of primary mediastinal synovial sarcoma: A case report with an immunocytochemical approach. Issue 5 (10th March 2020) - Yoshioka, Saya; Ebisu, Yusuke; Ishida, Mitsuaki; Miyasaka, Chika; Taniguchi, Yohei; Murakawa, Tomohiro; Tsuta, Koji