title: A coalescence of two syndromes in a girl with terminal deletion and inverted duplication of chromosome 5.
abstract: BACKGROUND
  Rearrangements involving chromosome 5p often result in two syndromes, Cri-du-chat (CdC) and Trisomy 5p, caused by a deletion and duplication, respectively. The 5p15.2 has been defined as a critical region for CdC syndrome; however, genotype-phenotype studies allowed isolation of particular characteristics such as speech delay, cat-like cry and mental retardation, caused by distinct deletions of 5p. A varied clinical outcome was also observed in patients with Trisomy 5p. Duplications of 5p10-5p13.1 manifest themselves in a more severe phenotype, while trisomy of regions distal to 5p13 mainly causes mild and indistinct features. Combinations of a terminal deletion and inverted duplication of 5p are infrequent in literature. Consequences of these chromosomal rearrangements differ, depending on size of deletion and duplication in particular cases, although authors mainly describe the deletion as the cause of the observed clinical picture.
  
  
  METHODS
  Here we present a 5-month-old Slovenian girl, with de novo terminal deletion and inverted duplication of chromosome 5p. Our patient presents features of both CdC and Trisomy 5. The most prominent features observed in our patient are a cat-like cry and severe malformations of the right ear.
  
  
  CONCLUSIONS
  The cat-like cry, characteristic of CdC syndrome, is noted in our patient despite the fact that the deletion is not fully consistent with previously defined cat-like cry critical region in this syndrome. Features like dolichocephaly, macrocephaly and ear malformations, associated with duplication of the critical region of Trisomy 5p, are also present, although this region has not been rearranged in our case. Therefore, the true meaning of the described chromosomal rearrangements is discussed.
authors: Danijela
authors: D
authors: Krgovic
authors: Ana
authors: A
authors: Blatnik
authors: Ante
authors: A
authors: Burmas
authors: Andreja
authors: A
authors: Zagorac
authors: Laboratory of Medical Genetics, University Clinical Centre Maribor, Ljubljanska Street 5, 2000 Maribor, Slovenia. nadja.kokalj-vokac@ukc-mb.si.
authors: Nadja
authors: N
authors: Kokalj Vokac
mesh_terms: D002872:Chromosome Deletion; D058674:Chromosome Duplication; D002895:Chromosomes, Human, Pair 5 / Q000235:genetics*; D055028:Comparative Genomic Hybridization; D003410:Cri-du-Chat Syndrome / Q000150:complications / Q000235:genetics*; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007223:Infant; D011247:Pregnancy