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Trisomy 16q21 → qter: Seven‐year follow‐up of a girl with unusually long survival
Author(s) -
de Carvalho Acácia Fernandes Lacerda,
da Silva Bellucco Fernanda Teixeira,
dos Santos Normeide Pedreira,
Pellegrino Renata,
de Azevedo Moreira Lília Maria,
Toralles Maria Betania Pereira,
Kulikowski Leslie Domenici,
Melaragno Maria Isabel
Publication year - 2010
Publication title -
american journal of medical genetics part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.064
H-Index - 112
eISSN - 1552-4833
pISSN - 1552-4825
DOI - 10.1002/ajmg.a.33524
Subject(s) - girl , trisomy , pediatrics , medicine , genetics , biology
Abstract The 16q21 → qter duplication is a chromosomal abnormality rarely found in liveborn infants, with only four published cases. We report here on the 7‐year follow‐up of a female patient with trisomy 16q21 → qter due to a maternal balanced translocation t(4;16)(q35.2;q21). The patient shows severe mental retardation, congenital heart malformations, nephropathy, and other congenital anomalies. The derivative chromosome was characterized by GTG banding, fluorescent in situ hybridization (FISH) with different BAC probes and the array technique, in order to map the breakpoints. The patient has a 16q21 → qter duplication, with a 4q35 → qter monosomy, which we assume does not contribute to the abnormal phenotype. This is the first reported case of postnatal survival to the age of 7 years, an unusually long time in this chromosomal syndrome. © 2010 Wiley‐Liss, Inc.

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