Imprint Cytology of Soft Tissue Myoepithelioma: A Case Study
박석주, 김애리, 구미진, 최준혁, 신덕섭,
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박석주 ( Park Seok-Ju )
Yeungnam University College of Medicine Department of Pathology
김애리 ( Kim Ae-Ri )
Yeungnam University College of Medicine Department of Pathology
구미진 ( Gu Mi-Jin )
Yeungnam University College of Medicine Department of Pathology
최준혁 ( Choi Joon-Hyuk )
Yeungnam University College of Medicine Department of Pathology
신덕섭 ( Shin Duk-Seop )
Yeungnam University College of Medicine Department of Orthopedic Surgery
KMID : 0357920130470030299
Abstract
Soft tissue myoepithelioma is a rare neoplasm composed of myoepithelial cells. Here, we describe the cytologic features of soft tissue myoepithelioma arising on the right forearm in an 18-year-old man. The excised tumor (3.0×1.8×1.5 cm) was well-demarcated, yellow-gray, soft, and myxoid. The cytologic smears showed round to spindle, epithelioid, and plasmacytoid cells in the myxoid background. The nuclei were uniform, round to ovoid, with finely distributed chromatin and eosinophilic or pale cytoplasm. The tumor cells demonstrated immunoreactivity for cytokeratin (AE1/ AE3), epithelial membrane antigen, S100 protein, and glial fibrillary acidic protein. Electron microscopy showed intermediate filaments, desmosomes, and basal lamina.
키워드
Soft tissue; Myoepithelioma; Cytology
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