【读片】产科疑难超声病例（267）：支气管囊肿
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43-year-old G2P1 was referred to our department for a routine second trimester ultrasound scan at 21 weeks. It was a dichorionic, diamniotic twin pregnancy, both fetuses of a female sex. We did not found any abnormalities of the fetus A. The following images show the anomaly found at the fetus B.
患者43岁，G2P1，孕21周在我处进行常规中期妊娠超声检查，超声发现为双绒毛膜双羊膜双胎，两胎儿均为女孩，其中的胎儿A未发现异常，而胎儿B发现如下异常。
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下一病例：【读片】产科疑难超声病例（268）：这个病例很有意思，真的...
Case report已经公布答案，请及时关注！
43-year-old G2P1 was referred to our department for a routine second trimester ultrasound scan at 21 weeks. It was a dichorionic, diamniotic twin pregnancy, both fetuses of a female sex. We did not found any abnormalities of the fetus A. The following images show the anomaly found at the fetus B.
患者43岁，G2P1，孕21周在我处进行常规中期妊娠超声检查，超声发现为双绒毛膜双羊膜双胎，两胎儿均为女孩，其中的胎儿A未发现异常，而胎儿B发现如下异常。
Images 1-2:
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