A Case of Salivary Duct Carcinoma in the Parotid Gland.

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Salivary duct carcinoma is rare carcinoma of high malignancy and poor prognosis. We report a case of salivary duct carcinoma, which developed five years after resection of a parotid cyst.<BR>A 71-year-old male visited our hospital complaining of a swelling of his right parotid gland. Physical examination, CT scanning, and ultra sonography implied that the mass was a malignant tumor. Radical surgery, including neck dissection and postoperative external irradiation, was performed. Although good local control could be achieved, he died of acute circulatory failure about one year after the operation.<BR>Histopathological examination of the resected lesion showed typical features of a salivary duct carcinoma, but did not show clear relation to the previously resected cvst.
特定非営利活動法人日本口腔科学会の論文