[A case of myotonic dystrophy proved by DNA analysis].

The authors describe a case of a 53 years old man with myotonic dystrophy. Based on characteristic clinical symptoms and EMG results the diagnosis was established and proved on DNA examination. Myotonic dystrophy gene analysis showed on 3' untranslated region one hundred and fifty CTG triplet repeats. The accessory examinations revealed: cataract arrhythmias, gallbladder stones, impotence, cerebral atrophy on neuroimaging (CT and MRI). Apathy, somnolence, concentration troubles were present. Pedigree of the presented patient and possibility of spontaneous mutation are discussed.