Isolated multiple bilateral echogenic papillary muscles: A unique sonographic feature of trisomy 13.
case_report · Level V
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Abstract
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. 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. Multiple bilateral papillary muscles may provide the only sonographic sign of fetal trisomy 13.
Medical subject headings
- Cardiomyopathies
- Chromosomes, Human, Pair 13
- Papillary Muscles
- Trisomy