SYT-SSX2 variant of primary pulmonary synovial sarcoma with focal expression of CD117 (c-Kit) protein and a poor clinical outcome.

Nahal Boroumand, Vinay Raja, Dennie V. Jones, Abida K. Haque

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Pulmonary synovial sarcoma is a rare neoplasm recently recognized as a distinct entity and characterized by t(X;18) translocation and production of at least 2 fusion genes, SYT-SSX1 and SYT-SSX2. We report a case of primary pulmonary synovial sarcoma with the SYT-SSX2 phenotype and a rapidly progressive downhill course. Previous reports have suggested that the soft tissue synovial sarcomas with SYT-SSX2 phenotype have a favorable clinical outcome. To the best of our knowledge, this is also the first report of CD117 (c-Kit) expression in a pulmonary synovial sarcoma. A 45-year-old woman presented with left chest pain and was found to have a left lower lobe tumor that was originally diagnosed as a sarcomatoid carcinoma. After the patient underwent chemotherapy and brachytherapy, the specimen from a left pneumonectomy showed a large spindle cell tumor, which was reclassified as a synovial sarcoma based on the results of immunophenotyping and molecular genetic studies. Differentiation between sarcoma and carcinosarcoma is crucial for implementing appropriate therapy. Furthermore, if the tumor expresses c-Kit, it may respond to target-based therapy.

Original languageEnglish (US)
JournalArchives of pathology & laboratory medicine
Volume127
Issue number4
StatePublished - 2003

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Proto-Oncogene Proteins c-kit
Synovial Sarcoma
Lung
Sarcoma
Neoplasms
Carcinosarcoma
Phenotype
Immunophenotyping
Pneumonectomy
Gene Fusion
Brachytherapy
Chest Pain
Molecular Biology
SYT-SSX fusion protein
Carcinoma
Drug Therapy
Therapeutics

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SYT-SSX2 variant of primary pulmonary synovial sarcoma with focal expression of CD117 (c-Kit) protein and a poor clinical outcome. / Boroumand, Nahal; Raja, Vinay; Jones, Dennie V.; Haque, Abida K.

In: Archives of pathology & laboratory medicine, Vol. 127, No. 4, 2003.

Research output: Contribution to journalArticle

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