Pinette M G, Pan Y, Chard R, Pinette S G, Blackstone J
Department of Obstetrics and Gynecology, Maine Medical Center, Scarborough 04074, USA.
J Matern Fetal Med. 1998 Jan-Feb;7(1):48-50. doi: 10.1002/(SICI)1520-6661(199801/02)7:1<48::AID-MFM11>3.0.CO;2-H.
Trisomy 9 is a relatively rare chromosomal abnormality. There have been no reports of first trimester ultrasound findings associated with mosaic or nonmosaic trisomy 9 in the literature. A case of nonmosaic trisomy 9 diagnosed prenatally with ultrasound findings at 11.7 weeks gestation is presented along with associated abnormal ultrasound findings.
9号染色体三体是一种相对罕见的染色体异常。文献中尚无关于孕早期超声检查发现与嵌合型或非嵌合型9号染色体三体相关的报道。本文报告一例在妊娠11.7周时通过超声检查产前诊断为非嵌合型9号染色体三体的病例，并伴有相关异常超声表现。
