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Case Reports in Pulmonology
Volume 2014, Article ID 537618, 3 pages
Case Report

Primary Pulmonary Synovial Sarcoma: A Very Rare Presentation

1Department of Chest Diseases, Medical Faculty, Medipol University, 34214 Istanbul, Turkey
2Yedikule Teaching Hospital for Chest Diseases and Thoracic Surgery, Istanbul, Turkey

Received 4 April 2014; Revised 24 June 2014; Accepted 9 July 2014; Published 3 August 2014

Academic Editor: Akif Turna

Copyright © 2014 Ekrem Cengiz Seyhan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Synovial sarcoma (SS) is a rare tumor originating from mesenchymal tissue and accounting for approximately 5–10% of all soft tissue sarcomas. A rare case of primary pulmonary SS in an asymptomatic 18-year-old man admitted to our hospital for investigation of a 6 × 6.5 cm, oval-shaped, well-delineated pleural based peripheral mass in the left lower lobe in his thorax CT is presented. Left lower lobectomy was done. Immunohistochemically, tumor cells were positive for cytokeratin, epithelial membrane antigen (EMA), and vimentin so that the histopathological diagnosis was compatible with biphasic spindle cell type SS in the lung.