Reichler A, Bronshtein M
Department of Obstetrics and Gynecology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
J Ultrasound Med. 1995 Aug;14(8):581-4. doi: 10.7863/jum.1995.14.8.581.
Fetal axillary cystic hygroma has been reported rarely and only as a sonographic finding late in gestation. A retrospective study of 19,200 early second trimester screening ultrasonograms for anomalies revealed five cases of axillary cystic hygroma. All of the axillary hygromas were small, transient, nonloculated cysts. Three cysts were associated with chromosomal abnormalities: trisomy 21 in two cases and a single case of trisomy 18 in which structural abnormalities also were detected. Early fetal axillary cystic hygroma appears to be different from postnatal axillary cysts on the basis of differences in prevalence, structure, and appearance. It also may be a normal variant in the development of the fetal lymphatic system.
胎儿腋窝囊肿性水瘤报道罕见，且仅作为妊娠晚期的超声检查发现。一项对19200例孕中期早期筛查超声检查异常情况的回顾性研究发现了5例腋窝囊肿性水瘤。所有腋窝水瘤均为小的、短暂的、无分隔囊肿。3例囊肿与染色体异常有关：2例为21三体，1例为18三体，且该例还检测到结构异常。基于患病率、结构和外观的差异，早期胎儿腋窝囊肿性水瘤似乎与出生后腋窝囊肿不同。它也可能是胎儿淋巴系统发育中的一种正常变异。
