IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-7-7-16010 Original Research Paper SYNOVIAL SARCOMA DIAGNOSIS BY FINE NEEDLE ASPIRATION CYTOLOGY: A CASE REPORT SWATI SINGH Dr. July 2018 7 7 01 02 ABSTRACT

Synovial sarcoma is a rare soft tissue tumor accounting for 5–10% of soft tissue sarcomas. Most arise in the extremities and trunk, and a small proportion occur in the abdominal wall, head and neck region, and mediastinum. It manifests different phenotypic subtypes that render their cytologic evaluation challenging. We report a case of biphasic synovial sarcoma on the right lower extremity in a 42–year–old man diagnosed by fine needle aspiration cytology. The aspirate was moderately cellular and composed of a mixture of tissue fragments and dissociated cells with bland chromatin, inconspicuous nucleoli, and oval to spindle–shaped cytoplasm. Mitosis was rare. A monolayer sheet of epithelial component was seen. The cells in this monolayer sheet had more abundant distinct cytoplasm, round nuclei, and prominent micronucleoli.