PMID- 10925388 OWN - NLM STAT- MEDLINE DCOM- 20001130 LR - 20190905 IS - 0148-7299 (Print) IS - 0148-7299 (Linking) VI - 93 IP - 3 DP - 2000 Jul 31 TI - Case of 45,X/46,XY mosaicism with non-mosaic discordance between short-term villi (45,X) and cultured villi (46,XY). PG - 230-3 AB - We report on a prenatally detected case of discordant non-mosaic karyotypes following chorionic villus sampling. A 45,X karyotype was found in cytotrophoblast cells and a 46,XY karyotype in mesenchymal core cells. A subsequent amniocentesis showed a true 45,X/46,XY mosaicism. Confirmatory studies, including fluorescence in situ hybridization (FISH) in various fetal and placental tissues as well as in the original villi preparations changed the presumed condition of generalized mosaicism with culture confined normality to that of generalized mosaicism with absolute concordance. This case underscores the importance of the investigation of both short-term and cultured villi preparations, the implementation of prenatal FISH studies, and the need for thorough follow-up investigation in cases of discrepant results. FAU - van den Berg, C AU - van den Berg C AD - Department of Clinical Genetics, University Hospital Dijkzigt, Erasmus University, Rotterdam, The Netherlands. cberg@kgen.fgg.eur.nl FAU - Van Opstal, D AU - Van Opstal D FAU - Brandenburg, H AU - Brandenburg H FAU - Los, F J AU - Los FJ LA - eng PT - Case Reports PT - Comparative Study PT - Journal Article PL - United States TA - Am J Med Genet JT - American journal of medical genetics JID - 7708900 SB - IM MH - Chorionic Villi Sampling/*methods MH - *Chromosome Aberrations MH - Chromosome Deletion MH - *Chromosome Disorders MH - Diagnosis, Differential MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - In Vitro Techniques MH - Karyotyping MH - Models, Genetic MH - Pregnancy MH - Reproducibility of Results MH - *X Chromosome MH - *Y Chromosome EDAT- 2000/08/05 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/08/05 11:00 PHST- 2000/08/05 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/08/05 11:00 [entrez] AID - 10.1002/1096-8628(20000731)93:3<230::AID-AJMG14>3.0.CO;2-O [pii] AID - 10.1002/1096-8628(20000731)93:3<230::aid-ajmg14>3.0.co;2-o [doi] PST - ppublish SO - Am J Med Genet. 2000 Jul 31;93(3):230-3. doi: 10.1002/1096-8628(20000731)93:3<230::aid-ajmg14>3.0.co;2-o.