PMID- 15921166 OWN - NLM STAT- MEDLINE DCOM- 20050913 LR - 20111117 IS - 0363-0269 (Print) IS - 0363-0269 (Linking) VI - 29 IP - 2 DP - 2005 TI - ATR-16 due to a de novo complex rearrangement of chromosome 16. PG - 141-50 AB - We describe a child with ATR-16 [alpha-thalassemia (thal)/mental retardation], who was referred for genetic evaluation because of minor anomalies and developmental delay. Cytogenetic analysis demonstrated a de novo complex rearrangement of chromosome 16. Fluorescence in situ hybridization (FISH) analysis, using chromosome 16 subtelomeric probes, showed that this patient had a deletion of the distal short arm of chromosome 16 that contains the alpha-globin genes and a duplication of 16q. Analysis of the alpha-globin locus by Southern blot showed a half normal dose of the alpha-globin gene. Microsatellite marker studies revealed that the duplicated 16q region was maternal in origin. Hematological studies revealed anemia, hypochromia and occasional cells with Hb H inclusion bodies. A hematological screening for alpha-thal should be considered in patients with mild developmental delay and a suggestive phenotype of ATR-16 with microcytic hypochromic anemia and normal iron status. The stellate pattern of the iris, a new finding in our patient, may contribute to a better clinical delineation of both syndromes, ATR-16 and/or duplication of 16qter. FAU - Gallego, Marta S AU - Gallego MS AD - Laboratorio de Citogenetica, Servicio de Genetica, Hospital de Pediatria Professor Dr. Juan P. Garrahan, Buenos Aires, Argentina. mgallego@garrahan.gov.ar FAU - Zelaya, Gabriela AU - Zelaya G FAU - Feliu, Aurora S AU - Feliu AS FAU - Rossetti, Liliana AU - Rossetti L FAU - Shaffer, Lisa G AU - Shaffer LG FAU - Bailey, Kristen A AU - Bailey KA FAU - Bacino, Carlos A AU - Bacino CA FAU - Barreiro, Cristina Z AU - Barreiro CZ LA - eng PT - Case Reports PT - Journal Article PL - England TA - Hemoglobin JT - Hemoglobin JID - 7705865 RN - 0 (Hemoglobins, Abnormal) RN - 9034-79-1 (Hemoglobin H) SB - IM MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 16/*genetics MH - Cytogenetic Analysis/methods MH - DNA Mutational Analysis/methods MH - Genotype MH - Hemoglobin H/analysis MH - Hemoglobins, Abnormal/genetics MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - Infant MH - Intellectual Disability/diagnosis/*genetics MH - Male MH - Point Mutation/genetics MH - Sequence Deletion MH - alpha-Thalassemia/diagnosis/*genetics EDAT- 2005/06/01 09:00 MHDA- 2005/09/15 09:00 CRDT- 2005/06/01 09:00 PHST- 2005/06/01 09:00 [pubmed] PHST- 2005/09/15 09:00 [medline] PHST- 2005/06/01 09:00 [entrez] PST - ppublish SO - Hemoglobin. 2005;29(2):141-50.