Lactate peak in muscle disclosed by magnetic resonance spectroscopy in a patient with CPEO-plus syndrome.
eNeurologicalSci
; 24: 100360, 2021 Sep.
Article
em En
| MEDLINE
| ID: mdl-34377843
ABSTRACT
A 25-year-old man complained of progressive diplopia and limb weakness for 3 years. Mitochondrial myopathy was suspected according to clinical presentation, elevated serum lactate concentration, and muscle histopathology. However, next-generation mtDNA sequencing (mtDNA NGS) of the blood only revealed a likely benign variant in the MT-CO1 gene (m.6510G > A). An mtDNA NGS study on the muscle sample revealed a large mtDNA deletion (m.5788-m.16071). The patient was diagnosed as having CPEO-plus syndrome related to the large mtDNA deletion. Notably, magnetic resonance spectroscopy revealed a doublet peak at 1-2 ppm in his edematous right vastus lateralis, which indicated lactate accumulation. Thus, muscle imaging and appropriate genetic tests facilitated the diagnosis of mitochondrial myopathy.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article