【摘 要】
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The WHO has classified malignant mixed tumours of salivary glands into noninvasive carcinoma in pleomorphic adenoma, invasive carcinoma in pleomorphic adenoma,
【机 构】
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Department of Pathology, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China
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The WHO has classified malignant mixed tumours of salivary glands into noninvasive carcinoma in pleomorphic adenoma, invasive carcinoma in pleomorphic adenoma, carcino-sarcoma and metastasizing mixed tumour.1 Carcinosarcoma, or true malignant mixed tumour, is a tumour composed of both carcinomatous and sarcomatous elements. It is an exceedingly rare tumour of the salivary glands and only about 60 cases have been reported.2 In this report we describe a case of carcinosarcoma of a parotid gland that contained an unusual mesenchymal component (follicular dendritic cell sarcoma, FDCS) in a 55-year-old man with cytological, histological and immunohistochemical findings. To our knowledge, this histological patt has not been reported previously in the English literature.
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