目的探讨CT提示的各种骨质改变对上颌窦良恶性病变的鉴别诊断价值。
Objective To probe role of ct in suggesting benign or malignant lesions of the maxillary sinuses by detecting bone changes.
良肿瘤有腔内软组织影，但骨破坏不明显，亦常有窦腔扩大。
Benign tumors, soft tissue shadow with no clear bone destruction, but often with enlarged sinus cavity.
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