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Kaposi sarcoma, oral malformations, mitral dysplasia, and scoliosis associated with 7q34-q36.3 heterozygous terminal deletion

Abstract : Chromosome 7 germline macrodeletions have been implicated in human congenital malformations and developmental delays. We herein report a novel heterozygous macrodeletion of 7q34-q36.3 in a 16-year-old girl originally from West Indies. Similar to previously reported cases of germline chromosome 7q terminal deletions, our patient has dental malposition, and developmental (growth and intellectual) delay. Novel phenotypic features include endemic Kaposi sarcoma (KS), furrowed tongue, thoracolumbar scoliosis, and mild mitral valve dysplasia. The occurrence of human herpes virus 8-driven KS, in a child otherwise normally resistant to other infectious agents and without any other tumoral lesion, points to a very selective immunodeficiency. While defects in organogenesis have been described with such macrodeletions, this is the first report of immunodeficiency and cancer predisposition.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-03208057
Contributor : Olivier Cassar <>
Submitted on : Monday, April 26, 2021 - 11:57:31 AM
Last modification on : Wednesday, July 21, 2021 - 4:10:02 PM

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Carolyn Jackson, Alain Lefèvre-Utile, Anne Guimier, Valérie Malan, Julie Bruneau, et al.. Kaposi sarcoma, oral malformations, mitral dysplasia, and scoliosis associated with 7q34-q36.3 heterozygous terminal deletion. American Journal of Medical Genetics Part A, Wiley, 2017, 173 (7), pp.1858-1865. ⟨10.1002/ajmg.a.38275⟩. ⟨pasteur-03208057⟩

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