Myoepithelioma of the salivary glands. Fine needle aspiration biopsy findings |
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Authors: | Kumar Perikala V Sobhani Seyed Ali Monabati Ahmad Hashemi Seyed Baseer Eghtadari Fardin Hamidi Seyed Afshin |
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Institution: | Departments of Pathology and Otolaryngology, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran. |
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Abstract: | OBJECTIVE: To evaluate the cytologic findings and pitfalls in the diagnosis of myoepithelioma of the salivary glands. STUDY DESIGN: Smears from 7 cases of myoepithelioma of the salivary glands, 3 plasmacytoid, 2 spindle and 2 mixed types, all histologically confirmed, were evaluated with special attention to cytologic features that may be helpful for the diagnosis. RESULTS: A correct cytologic diagnosis was not made in any of the cases. Three were diagnosed as plasmacytomas or cellular pleomorphic adenomas, 2 as benign spindle cell tumors and 2 as cellular pleomorphic adenomas. Mitoses and marked pleomorphism were absent. Nuclear striations were noted frequently. CONCLUSION: Diagnosis of myoepithelioma was difficult on fine needle aspiration smears. Nuclear striations (zebra lines) were noted in 5 cases. This finding is not reported in previously published papers. |
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