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Horikoshi T.,Nagano Childrens Hospital | Kikuchi A.,Nagano Childrens Hospital | Tamaru S.,Nagano Childrens Hospital | Ono K.,Nagano Childrens Hospital | And 8 more authors.
Journal of Obstetrics and Gynaecology Research | Year: 2010

The X-linked recessive type of chondrodysplasia punctata (CDPX1) is a skeletal disorder that is characterized by stippled calcification at an epiphyseal nucleus and the surrounding soft tissue, short stature and an unusual face because of nasal hypoplasia. In most of the patients, this condition is noted after birth because of a characteristic face or respiratory problems. Here, we report a fetus with CDPX1. Two-dimensional ultrasound examination revealed unexplained polyhydramnios and a male fetus. Fetal biometry showed shortened long bones. Three-dimensional ultrasonography clearly demonstrated a hypoplastic nose with a depressed nasal bridge and contracture of wrists and fingers. Chromosome analysis of the amniotic fluid cells revealed the 46,Y,del(X)(p22.3) karyotype. Fluorescence in situ hybridization revealed a deletion of subtelomeric sequences at the Xpter and STS gene, but not a deletion of the KAL gene. The genomic copy number analysis demonstrated terminal deletion of 8.33 Mb that included SHOX, CSF2RA, XG, ARSE, NLGN4 and STS genes. We think that our case presents typical features of a fetus with this disorder and will be of great help in prenatal ultrasound diagnosis. © 2010 Japan Society of Obstetrics and Gynecology.

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