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KMID : 0387920060170010056
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Korean Journal of Cytopathology
2006 Volume.17 No. 1 p.56 ~ p.62
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Salivary Duct Carcinoma with Mucin Containing Cells -Report of a Case Misdiagnosed as Mucoepidermoid Carcinoma on Fine Needle Aspiration Cytology-
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Kim Hae-Ryoung
Kim Hyun-Gi
Kim Ho-Guen
Kim Jin
Hong Soon-Won
Kim Se-Hoon
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Abstract
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Salivary duct carcinoma (SDC) is a rare primary salivary gland malignancy characterized by histological features similar to those of ductal carcinomas of the breast. It is regarded as a high-grade malignancy associated with frequent local recurrences and early distant metastases that require aggressive treatment. The typical fine needle aspiration cytology (FNAC) findings in SDC include cellular smears showing tumor cells with eccentric pleomorphic nuclei and a granular cytoplasm arranged in flat sheets or cribriform patterns against a necrotic background. However, the presence of mucin-containing cells in SDC has been rarely described. We report the FNAC findings in a patient with histologically confirmed SDC that demonstrated numerous mucin-containing cells and was subsequently misdiagnosed as a high-grade mucoepidermoid carcinoma. Here we discuss the problems involved in distinguishing SDC from high-grade mucoepidermoid carcinoma on the basis of cytologic findings alone.
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KEYWORD
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Salivary duct carcinoma, Mucin, Fine needle aspiration cytology
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