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Brain imaging in mitochondrial respiratory chain deficiency: combination of brain MRI features as a useful tool for genotype/phenotype correlations
  1. M Bricout1,
  2. D Grévent1,
  3. A S Lebre2,
  4. M Rio2,
  5. I Desguerre3,
  6. P De Lonlay3,
  7. V Valayannopoulos3,
  8. F Brunelle1,
  9. A Rötig2,
  10. A Munnich2,
  11. N Boddaert1
  1. 1Department of Pediatric Radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
  2. 2Department of Genetic Units, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
  3. 3Department of Neurology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
  1. Correspondence to Dr M Bricout, Department of Pediatric radiology, Hôpital Necker-Enfants Malades and Inserm U781 and U1000, Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, 149 rue de sèvres, Paris 75015, France; marine.bricout{at}orange.fr

Abstract

Mitochondrial diseases are characterised by a broad clinical and genetic heterogeneity that makes diagnosis difficult. Owing to the wide pattern of symptoms in mitochondrial disorders and the constantly growing number of disease genes, their genetic diagnosis is difficult and genotype/phenotype correlations remain elusive. Brain MRI appears as a useful tool for genotype/phenotype correlations. Here, we summarise the various combinations of MRI lesions observed in the most frequent mitochondrial respiratory chain deficiencies so as to direct molecular genetic test in patients at risk of such diseases. We believe that the combination of brain MRI features is of value to support respiratory chain deficiency and direct molecular genetic tests.

  • Genetics
  • Metabolic disorders
  • Neurology
  • Pediatric Radiology

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