PMID- 7573156 OWN - NLM STAT- MEDLINE DCOM- 19951120 LR - 20041117 IS - 0148-7299 (Print) IS - 0148-7299 (Linking) VI - 58 IP - 1 DP - 1995 Jul 31 TI - Partial trisomy 13q identified by sequential fluorescence in situ hybridization. PG - 50-3 AB - We report on a 19-month-old boy with partial trisomy 13q resulting from a probable balanced translocation involving chromosomes 1 and 13. The infant presented with omphalocele, malrotation, microcephaly with overriding skull bones, micrognathia, apparently low-set ears, rocker-bottom feet, and congenital heart disease, findings suggestive of trisomy 13. Karyotypic studies from peripheral blood lymphocytes documented an unbalanced karyotype 46,XY,-1,+der(1). The mother's chromosomes were normal, and the father was not available. Conventional cytogenetic techniques were unable to identify the extra material on the terminal 1q. Using fluorescence in situ hybridization (FISH) on the GTL-banded metaphases, the extra material on 1q was identified as the terminal long arm of 13, thus resulting in partial trisomy 13 (q32-qter). FAU - Rao, V V AU - Rao VV AD - H.A. Chapman Institute of Medical Genetics, Children's Medical Center, Tulsa, Oklahoma, USA. FAU - Carpenter, N J AU - Carpenter NJ FAU - Gucsavas, M AU - Gucsavas M FAU - Coldwell, J AU - Coldwell J FAU - Say, B AU - Say B LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Am J Med Genet JT - American journal of medical genetics JID - 7708900 SB - IM MH - Abnormalities, Multiple/*genetics MH - Chromosome Mapping MH - Chromosomes, Human, Pair 1 MH - *Chromosomes, Human, Pair 13 MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infant MH - Karyotyping MH - Male MH - Translocation, Genetic MH - *Trisomy EDAT- 1995/07/31 00:00 MHDA- 1995/07/31 00:01 CRDT- 1995/07/31 00:00 PHST- 1995/07/31 00:00 [pubmed] PHST- 1995/07/31 00:01 [medline] PHST- 1995/07/31 00:00 [entrez] AID - 10.1002/ajmg.1320580111 [doi] PST - ppublish SO - Am J Med Genet. 1995 Jul 31;58(1):50-3. doi: 10.1002/ajmg.1320580111.