题目内容
关于低回声型肝癌声像图描述，错误的是（ ）
2021-10-14
A.低回声型肝癌多呈圆形，轮廓尚清晰
B.无后壁回声，仅后方回声轻度增强
C.内部回声近无回声，伴回声不均
D.1周后复查常有明显改变
E.内部血流最丰富
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