Journal
EUROPEAN JOURNAL OF MEDICAL GENETICS
Volume 50, Issue 2, Pages 94-102Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejmg.2006.11.001
Keywords
supernumerary ring chromosome (SRC); chromosome 1; mosaicism; genetic counselling
Categories
Ask authors/readers for more resources
Genetic counselling of patients with small supernumerary ring chromosomes (sSRCs) can be difficult, especially in prenatal testing, due to the complexity in establishing a karyotype-phenotype correlation. In fact, it has been estimated that about 10% of extra ring(1) chromosomes are associated with an unremarkable phenotype. We report on five new cases of extra ring chromosomes(1) manifesting different clinical outcome. One case was familial, segregating from a mother with mosaic karyotype, while the others were de novo. Ring chromosomes were characterised by FISH. In three subjects the involvement of the same euchromatic 1p region was demonstrated. Present observations corroborate previous results and provide some insight into the identification of the harmless ring(1) structures. (c) 2006 Elsevier Masson SAS. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available