该肿瘤系高度恶性，多发于50岁以上男性，常见发病部位为腮腺，临床表现浸润性强，易经淋巴和血运转移。
It is a kind of high malignant tumor. The clinical features are as follows: frequently arise from more than 50 years old men, cervical lymph node and blood metastases easily.
筛窦是最常见的发病部位，接下来是上颌窦、额窦及蝶窦。
The ethmoid sinus is the most common location, followed by the maxillary, frontal, and sphenoid sinuses.
筛窦是最常见的发病部位，接下来是上颌窦、额窦及蝶窦。
The ethmoid sinus is the most common location, followed by the maxillary, frontal, and sphenoid sinuses.
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