题目内容
肿块状结肠癌的超声表现,不常见的是( )
2021-10-14
A.有时可继发肠梗阻或肠套叠
B.肿块实质部分回声增高
C.肠管壁不规则性增厚
D.肿块使肠腔局部狭窄
E.彩色多普勒血流信号较丰富
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