上颌窦癌的临床特点中哪项可除外 ( )A.常转移至颌下及颈部淋巴结 B.早期有症状，较易发现 C.偶见腺源上皮癌 D.较晚才有明显骨质破坏 ...

作者: tihaiku 人气: - 评论: 0

问题上颌窦癌的临床特点中哪项可除外 ( )

选项 A.常转移至颌下及颈部淋巴结 B.早期有症状，较易发现 C.偶见腺源上皮癌 D.较晚才有明显骨质破坏 E.不同部位的肿瘤可出现不同症状

答案 B

解析

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