Differential diagnosis of mitochondrial neurogastrointestinal encephalomyopathy. First clinical description in Russia
Mitochondrial neurogastrointestinal encephalomyopathy syndrome (MNGIE) is a rare autosomal recessive progressive multisystem disorder. Most of MNGIE is caused by mutations in the gene encoding thymidine phosphorylase (TYMP), locus 22q13. Mitochondrial dysfunction repre- sents multiple deletions and depletion of mtDNA. We present a case of MNGIE with a novel mutation in the position c.1001T>G of TYMP gene, hypergonadotropic hypogonadism, decrement of compound muscle action potential following repetitive nerve stimulation on EMG which was not previously described in literature and differential diagnoses MNGIE with other conditions.