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【单选题】
关于异位妊娠的超声声像特点,以下哪项错误A.
在宫腔以外探及胚芽及原始心管搏动
B.
子宫增大但宫腔空虚,宫旁探及低回声液性暗区
C.
停经患者在宫旁探及低回声液性暗区可确诊异位妊娠
D.
宫腔探及妊娠囊应与异位妊娠时在宫内出现的假妊娠囊鉴别
E.
有时宫旁缺乏异位妊娠的声像特征,但在腹腔或子宫直肠窝探及无回声暗区,对异位妊娠的诊断有帮助
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