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Bartholdi D, Toelle SP, Steiner B, et al. Blepharophimosis and mental retardation (BMR) phenotypes caused by chromosomal rearrangements: description in a boy with partial trisomy 10q and monosomy 4q and review of the literature. Eur J Med Genet. 2008;51(2):113-23doi: 10.1016/j.ejmg.2007.12.005.
Bartholdi, D., Toelle, S. P., Steiner, B., Boltshauser, E., Schinzel, A., & Riegel, M. (2008). Blepharophimosis and mental retardation (BMR) phenotypes caused by chromosomal rearrangements: description in a boy with partial trisomy 10q and monosomy 4q and review of the literature. European journal of medical genetics, 51(2), 113-23. https://doi.org/10.1016/j.ejmg.2007.12.005
Bartholdi, Deborah, et al. "Blepharophimosis and mental retardation (BMR) phenotypes caused by chromosomal rearrangements: description in a boy with partial trisomy 10q and monosomy 4q and review of the literature." European journal of medical genetics vol. 51,2 (2008): 113-23. doi: https://doi.org/10.1016/j.ejmg.2007.12.005
Bartholdi D, Toelle SP, Steiner B, Boltshauser E, Schinzel A, Riegel M. Blepharophimosis and mental retardation (BMR) phenotypes caused by chromosomal rearrangements: description in a boy with partial trisomy 10q and monosomy 4q and review of the literature. Eur J Med Genet. 2008 Mar-Apr;51(2):113-23. doi: 10.1016/j.ejmg.2007.12.005. Epub 2008 Jan 04. PMID: 18262484.
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Eur J Med Genet. 2008 Mar-Apr;51(2):113-23. doi: 10.1016/j.ejmg.2007.12.005. Epub 2008 Jan 04.

Blepharophimosis and mental retardation (BMR) phenotypes caused by chromosomal rearrangements: description in a boy with partial trisomy 10q and monosomy 4q and review of the literature.

European journal of medical genetics

Deborah Bartholdi, Sandra P Toelle, Bernhard Steiner, Eugen Boltshauser, Albert Schinzel, Mariluce Riegel

Affiliations

  1. Institute of Medical Genetics, University of Zürich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland. [email protected]

PMID: 18262484 DOI: 10.1016/j.ejmg.2007.12.005

Abstract

Blepharophimosis is a rare congenital anomaly of the palpebral fissure which is often associated with mental retardation and additional malformations. We report on a boy with blepharophimosis, ptosis and severe mental retardation carrying an unbalanced 4;10 translocation with terminal duplication of 10q [dup(10)(q25.1-->qter)] and monosomy of a small terminal segment of chromosome 4q [del(4)(34.3-->qter)]. Detailed clinical examination and review of the literature showed that the phenotype of the patient was mainly determined by the dup(10q). This paper reviews the chromosomal aberrations associated with BMR (blepharophimosis mental retardation) phenotypes. Searching different databases and reviewing the literature revealed 14 microscopically visible aberrations (among them UPD(14)pat) and two submicroscopic rearrangements causing blepharophimosis and mental retardation (BMR) syndrome. Some of these rearrangements-like the terminal dup(10q) identified in our patient or interstitial del(2q)-are associated with clearly defined phenotypes and can be well distinguished from each other on basis of clinical examination. This paper should assist clinicians and cytogeneticists when evaluating patients with BMR syndrome.

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