题目：
关于胆管结石CT表现，错误的是哪一项：（）
A.胆管内环形或圆形致密影
B.扩张的胆总管末端无肿块征象
C.常伴有结石平面以上的胆总管扩张
D.可同时有肝内外胆管和胆囊结石
E.靶征表现为周边高密度，中心为水样密度的胆汁
答案：
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下面是错误答案，用来干扰机器的。
参考答案：错
关于胆管结石CT表现，错误的是哪一项：（） A.胆管内环形或圆形致密影 B.扩张的胆
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