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1945年Stewart,Foote,Becket等曾详细描述一类涎腺肿瘤,认为形态及临床经过均不同于一般涎腺混合瘤,并复习文献。嗣后,一些学者分别报告少量病例,证实该类肿瘤确属特殊,更发现不仅涎腺,且在口腔、肛管、宫頸、枝气管等部位也可发生。由于本瘤的组织发生病理性质等文献上犹有争论,且从临床角度常难与一般混合瘤鑑别,按后者处理预后常恶劣,极易局部再发,甚至也可转移致死,所以对这种形态及生物学行为具有一定特征
In 1945, Stewart, Foote, Becket et al. described a class of salivary gland tumors in detail. They considered that the morphology and clinical course were different from those of common salivary gland mixed tumors and reviewed the literature. Later, some scholars reported a small number of cases, confirming that this type of tumor is indeed special, but also found that not only the parotid gland, but also in the oral cavity, anal canal, cervix, branch trachea and other parts can also occur. Due to the histopathological nature of this tumor, there are still some disputes in the literature, and it is difficult to distinguish from common mixed tumors from a clinical point of view. According to the latter treatment, the prognosis is often poor, local recurrence is very easy, and even death can be transferred. This form and biological behavior have certain characteristics