Reported patients harbouring pathogenic variants in NDUFA1 or NDUFA10 presented predominantly with Leigh syndrome or with Leigh‐like symptoms, whilst the single case of early‐onset NDUFA11‐related mitochondrial disease presented as fatal encephalocardiomyopathy (Fernandez‐Moreira et al, 2007; Berger et al, 2008; Hoefs et al, 2010; Minoia et al, 2017). The gene discussed is NDUFA11; the disease is inborn mitochondrial metabolism disorder.