PMID- 15523640 OWN - NLM STAT- MEDLINE DCOM- 20050505 LR - 20200930 IS - 1552-4825 (Print) IS - 1552-4825 (Linking) VI - 131 IP - 2 DP - 2004 Dec 1 TI - A dysmorphic boy with 4qter deletion and 4q32.3-34.3 duplication: clinical, cytogenetic, and molecular findings. PG - 186-9 AB - An infant boy presented with trigonocephaly, mild craniofacial features, a small VSD, open ductus Botalli (ODB), bilateral hip dysplasia, psychomotor retardation, and hypotonia. The karyotype was 46,XY,del(4)(q34). Unexpectedly, fluorescence in situ hybridization (FISH) studies revealed not only a deletion but also a duplication. The deletion extends from 4qter to 4q34.3 and the duplication from 4q32.3 to q34.3. This is the first description of a deletion inverted duplication 4q. Possible mechanisms we can envision by which this deletion/duplication arose could be a U-type exchange causing end-to-end fusion or a two step event with a paracentric inversion and subsequent cross-over in the inverted segment. This observation suggests that the karyotype of patients with a 4q deletion should be confirmed by molecular cytogenetics. FAU - Van Buggenhout, Griet AU - Van Buggenhout G AD - Center for Human Genetics, University Hospital Leuven, Leuven, Belgium. griet.vanbuggenhout@uz.kuleuven.ac.be FAU - Maas, Nicole M C AU - Maas NM FAU - Fryns, Jean-Pierre AU - Fryns JP FAU - Vermeesch, Joris R AU - Vermeesch JR LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 SB - IM MH - Abnormalities, Multiple/*genetics MH - *Chromosome Aberrations MH - Chromosome Banding MH - *Chromosome Deletion MH - *Chromosomes, Human, Pair 4 MH - Humans MH - Infant, Newborn MH - Karyotyping MH - Male EDAT- 2004/11/04 09:00 MHDA- 2005/05/06 09:00 CRDT- 2004/11/04 09:00 PHST- 2004/11/04 09:00 [pubmed] PHST- 2005/05/06 09:00 [medline] PHST- 2004/11/04 09:00 [entrez] AID - 10.1002/ajmg.a.20679 [doi] PST - ppublish SO - Am J Med Genet A. 2004 Dec 1;131(2):186-9. doi: 10.1002/ajmg.a.20679.