题目内容
下列上颌窦癌的临床特点中不包琯
2021-11-10
A.早期有症状，较易发现
B.偶见腺源上皮癌
C.不同部位的肿瘤可出现不同症状
D.较晚才有明显骨质破坏
E.常转移至颌下及颈部淋巴结
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