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Case Reports
. 2016 May;170A(5):1339-42.
doi: 10.1002/ajmg.a.37588. Epub 2016 Feb 11.

Tatton-Brown-Rahman syndrome due to 2p23 microdeletion

Nobuhiko Okamoto  1 , Yasuhisa Toribe  2 , Keiko Shimojima  3 , Toshiyuki Yamamoto  3
Affiliations
Case Reports

Tatton-Brown-Rahman syndrome due to 2p23 microdeletion

Nobuhiko Okamoto et al. Am J Med Genet A. 2016 May.

Abstract

Tatton-Brown-Rahman syndrome is a new overgrowth syndrome due to DNMT3A (DNA cytosine 5 methyltransferase 3A) mutations. Mutation carriers show a distinctive facial appearance, intellectual disability, and increased height. We report a patient with overgrowth who showed submicroscopic deletion of chromosome 2p23 including DNMT3A. The deletion was detected by array-CGH. He showed moderate ID and distinctive facial gestalt. His clinical features were consistent with those of Tatton-Brown-Rahman syndrome. We suggest that 2p23 microdeletion including DNMT3A may cause similar symptoms in patients with DNMT3A mutations and should be considered in patients with overgrowth.

Keywords: DNMT3A; Tatton-Brown-Rahman syndrome; overgrowth syndrome.

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