孤立性多发双侧乳头肌回声增强：13三体综合征的一种独特超声特征。
Isolated multiple bilateral echogenic papillary muscles: A unique sonographic feature of trisomy 13.
作者信息
Wax Joseph R, Pinette Michael G, Blackstone Jacquelyn, Cartin Angelina
机构信息
Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Maine Medical Center, Portland, Maine, USA.
出版信息
Obstet Gynecol. 2002 May;99(5 Pt 2):902-3. doi: 10.1016/s0029-7844(01)01667-2.
BACKGROUND
Echogenic papillary muscles are noted in 30% of fetuses with trisomy 13. All reported fetuses with trisomy 13 and echogenic papillary muscles have exhibited additional abnormal sonographic findings.
CASE
A 21.7-week fetus demonstrated three papillary echogenicities in each cardiac ventricle during ultrasound examination. Chromosomal analysis of amniocytes showed the karyotype 47,XX,+13.
CONCLUSION
Multiple bilateral papillary muscles may provide the only sonographic sign of fetal trisomy 13.
背景
13三体胎儿中30%可见乳头肌回声增强。所有报道的伴有乳头肌回声增强的13三体胎儿均有其他超声异常表现。
病例
一名21.7周的胎儿在超声检查中显示每个心室有三个乳头肌回声增强。羊水细胞染色体分析显示核型为47,XX,+13。
结论
双侧多个乳头肌可能是胎儿13三体唯一的超声征象。
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