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Inicio Archivos de la Sociedad Española de Oftalmología (English Edition) Two sisters with macular dystrophy caused by the 3243A>G mitochondrial DNA mutat...
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Vol. 91. Issue 5.
Pages 240-244 (May 2016)
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Vol. 91. Issue 5.
Pages 240-244 (May 2016)
Short communication
Two sisters with macular dystrophy caused by the 3243A>G mitochondrial DNA mutation
Dos hermanas con distrofia macular causada por la mutación 3243A>G del ADN mitocondrial
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V. Sánchez-Gutiérrez
Corresponding author
verosangu@gmail.com

Corresponding author.
, J. García-Montesinos, A. Pardo-Muñoz
Departamento de Oftalmología, Hospital Universitario Ramón y Cajal, Madrid, Spain
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Abstract
Case report

Two sisters, 54 and 60 years old, with a history of diabetes and deafness, consulted for decreased visual acuity (VA). Funduscopic examination revealed patchy areas of chorioretinal atrophy with annular arrangement around the fovea. Genetic study identified the heteroplasmic mutation 3243A>G in mitochondrial DNA, which supports the syndrome maternally inherited diabetes and deafness (MIDD) or Ballinger-Wallace disease.

Discussion

The finding of such macular disorders, especially in the presence of diabetes mellitus and deafness, should suggest the performing of a mitochondrial genome screening to identify this unusual syndrome.

Keywords:
Macular dystrophy
Diabetes
Deafness
Mitochondrial DNA
Mitochondrial disease
Ballinger-Wallace syndrome
Resumen
Caso clínico

Dos hermanas de 54 y 60 años, con antecedentes de diabetes y sordera, consultaron por disminución de la agudeza visual (AV). En la funduscopia se observaban áreas parcheadas de atrofia coriorretiniana con disposición anular alrededor de la fóvea. El estudio genético identificó la mutación heteroplásmica 3243A>G en el ADN mitocondrial, compatible con el síndrome Maternally Inherited Diabetes and Deafness (MIDD) o enfermedad de Ballinger-Wallace.

Discusión

El hallazgo de tales alteraciones maculares características, especialmente si se acompaña de diabetes mellitus y sordera, nos debe indicar la realización de un cribado del genoma mitocondrial para identificar este inusual síndrome.

Palabras clave:
Distrofia macular
Diabetes
Sordera
ADN mitocondrial
Enfermedad mitocondrial
Síndrome de Ballinger-Wallace

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