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Fine‐needle aspiration of epithelioid sarcoma

Epithelioid sarcoma is a rare tumor with characteristic morphologic and immunohistochemical features. It can be confused histologically and cytologically with a variety of benign and malignant lesions, including a granulomatous process, synovial sarcoma, melanoma, squamous cell carcinoma, and adenocarcinoma. The objective of this study was to define the cytologic features of this rare tumor.