皮皮学，免费搜题
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【单选题】
下列哪项不是肺脓肿的CT表现特征A.
早期病灶CT上呈均匀中等密度
B.
较易显示实变阴影内早期坏死后液化
C.
空洞一般为厚壁空洞，内壁较光整
D.
增强后扫描空洞壁强化
E.
病灶治愈后常见钙化影
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