| A rare mitochondrial disease due to a defect in mitochondrial protein synthesis with characteristics of neonatal or infancy-onset of seizures that are refractory to treatment, delayed or absent psychomotor development and lactic acidosis. Additional manifestations reported include poor feeding, failure to thrive, microcephaly, hypotonia, anemia and thrombocytopenia. Caused by homozygous or compound heterozygous mutation in the FARS2 gene on chromosome 6p25. |