PMID- 22407767 OWN - NLM STAT- MEDLINE DCOM- 20120730 LR - 20220331 IS - 1552-4833 (Electronic) IS - 1552-4825 (Linking) VI - 158A IP - 4 DP - 2012 Apr TI - Subtelomeric 6.7 Mb trisomy 10p and 5.6 Mb monosomy 21q detected by FISH and array-CGH in three related patients. PG - 869-76 LID - 10.1002/ajmg.a.35236 [doi] AB - Cryptic subtelomeric chromosomal aberrations are responsible for 5-10% of moderate/severe and 1% of mild intellectual disability. Unbalanced subtelomeric chromosomal rearrangements result in variable phenotypes which seem to be highly influenced by both the size of the duplication/deletion and the chromosomes involved in the translocation. We report on three related patients with moderate intellectual disability, language delay, hypotonia, facial dysmorphism, cardiac anomalies, scoliosis, and kyphosis in whom a familial (maternal) unbalanced submicroscopic translocation was found by subtelomeric fluorescence in situ hybridization (FISH). This rearrangement resulted in a partial trisomy 10pter and partial monosomy 21qter. The karyotype was 46,XY.ish der(21)t(10;21)(p14;q22.2). Confirmation of a 6.7 Mb size distal duplication of the p15.3-14 region of chromosome 10 and a 5.6 Mb distal deletion of the q22.2-22.3 region of chromosome 21 was obtained by array-CGH. To our best knowledge, such a composition of subtelomeric unbalanced translocations has not yet been published. Detection of this aberration in successive pregnancies of carrier members of the family by prenatal FISH could prevent the recurrence of the disease. Furthermore, detection of the rearrangements and identification of genes located in the chromosomal regions involved might be of interest. CI - Copyright (c) 2012 Wiley Periodicals, Inc. FAU - Szabo, Gabriella P AU - Szabo GP AD - Pediatrics Institute, University of Debrecen, Medical and Health Science Center, Debrecen, Hungary. gabsza@med.unideb.hu FAU - Knegt, Alida C AU - Knegt AC FAU - Ujfalusi, Aniko AU - Ujfalusi A FAU - Balogh, Erzsebet AU - Balogh E FAU - Szabo, Tamas AU - Szabo T FAU - Olah, Eva AU - Olah E LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120309 PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 RN - Chromosome 10, trisomy 10p RN - Chromosome 21 monosomy SB - IM MH - Abnormalities, Multiple/*genetics MH - Child MH - Child, Preschool MH - Chromosome Aberrations MH - Chromosome Deletion MH - Chromosome Disorders/*genetics MH - Chromosomes, Human, Pair 10/genetics MH - Chromosomes, Human, Pair 21/genetics MH - Comparative Genomic Hybridization MH - Facies MH - Humans MH - In Situ Hybridization, Fluorescence MH - Intellectual Disability/genetics MH - Karyotype MH - Kyphosis/genetics MH - Language Development Disorders/genetics MH - Male MH - Monosomy/*genetics MH - Muscle Hypotonia/genetics MH - Scoliosis/genetics MH - Trisomy/*genetics MH - Young Adult EDAT- 2012/03/13 06:00 MHDA- 2012/07/31 06:00 CRDT- 2012/03/13 06:00 PHST- 2011/05/14 00:00 [received] PHST- 2011/12/30 00:00 [accepted] PHST- 2012/03/13 06:00 [entrez] PHST- 2012/03/13 06:00 [pubmed] PHST- 2012/07/31 06:00 [medline] AID - 10.1002/ajmg.a.35236 [doi] PST - ppublish SO - Am J Med Genet A. 2012 Apr;158A(4):869-76. doi: 10.1002/ajmg.a.35236. Epub 2012 Mar 9.