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Year : 2012  |  Volume : 4  |  Issue : 5  |  Page : 241-243

A Primary Synovial Sarcoma of Lung

1 Department of Pulmonary Medicine, Midnapore Medical College, Midnapore, Paschim Midnapore, India
2 Department of Pulmonary Medicine, Medical College, Kolkata, India
3 Department of Pulmonary Medicine, Bankura Sammilani Medical College, Bankura, West Bengal, India

Correspondence Address:
A Das
Assistant Professor, Peon Para, Bhatchala, P.O. Sripalli, Burdwan - 713 103, West Bengal
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1947-2714.95911

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Primary pulmonary synovial sarcoma is an extremely rare tumor. The diagnosis is established only after sarcoma like primary lung malignancies and metastatic sarcoma have been excluded. It has four subtypes: monophasic fibrous, monophasic epithelial, biphasic, and poorly differentiated subtypes, We report a case of a 55-year-old man, who complained of left-sided chest pain and shortness of breath, had a large heterogeneous mass, occupying most of left hemithorax, associated with ipsilateral pleural effusion, seen on contrast enhanced computed tomogram of thorax. Computed tomography guided tru-cut biopsy revealed spindle cell sarcoma. On immunohistochemistry, tumor cells expressed epithelial membrane antigen, CD99, bcl-2 and Calponin and were immunonegative for cytokeratin. So, final diagnosis was primary pulmonary synovial sarcoma, Primary pulmonary synovial sarcoma is a rarely reported case of malignant neoplasm of lung. Histopathology, immunohistochemistry, and cytogenetics, if possible, are essential for confirmation of its diagnosis.

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