Abstract
The knowledge about the genetic spectrum underlying paediatric mitochondrial diseases is rapidly growing. As a consequence, the range of neuroimaging findings associated with mitochondrial diseases became extremely broad. This has important implications for radiologists and clinicians involved in the care of these patients. Here, we provide a condensed overview of brain magnetic resonance imaging (MRI) findings in children with genetically confirmed mitochondrial diseases. The neuroimaging spectrum ranges from classical Leigh syndrome with symmetrical lesions in basal ganglia and/or brain stem to structural abnormalities including cerebellar hypoplasia and corpus callosum dysgenesis. We highlight that, although some imaging patterns can be suggestive of a genetically defined mitochondrial syndrome, brain MRI-based candidate gene prioritization is only successful in a subset of patients.
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Abbreviations
- ADC:
-
Apparent diffusion coefficient
- CISS:
-
Constructive interference in steady state
- CNS:
-
Central nervous system
- FLAIR:
-
Fluid attenuation inversion recovery
- MELAS:
-
Mitochondrial encephalopathy, lactic acidoses and stroke-like lesions
- MRI:
-
Magnetic resonance imaging
- MRS:
-
Magnetic resonance spectroscopy
- NO:
-
Nitric oxide
- OXPHOS:
-
Oxidative phosphorylation
- PDHC:
-
Pyruvate dehydrogenase complex
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This project was supported by the BMBF-funded German Network for Mitochondrial Disorders (mitoNET #01GM1113C) and by the E-Rare project GENOMIT (01GM1207). TBH was supported by the BMBF through the Juniorverbund in der Systemmedizin “mitOmics” (FKZ 01ZX1405C). FD was supported by a grant of the Forschungskommission of the Medical Faculty of the Heinrich-Heine-University Düsseldorf. FB was supported by a grant of the German Research Foundation/Deutsche Forschungsgemeinschaft (BA 5758/1-1).
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Baertling, F., Klee, D., Haack, T.B. et al. The many faces of paediatric mitochondrial disease on neuroimaging. Childs Nerv Syst 32, 2077–2083 (2016). https://doi.org/10.1007/s00381-016-3190-3
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DOI: https://doi.org/10.1007/s00381-016-3190-3