Myotonic dystrophy type 1(DM1)is a multisystem trinucleotide repeat expansion disorder usually referred to the department of neurology with complaints of progressive muscle weakness and myotonia.This article reported a 33-year-old female patient with DM1 presenting with acute respiratory failure.Muscle bi-opsy in vastus lateralis showed significantly increased internal nuclei.Genetic test show CTG repeat expansions with the size of(847±76)in dystrophia myotonica protein kinase(DMPK)gene on chromosome 19.This case report broadens the clinician's understanding of the atypical clinical manifestations of DM1,so as to avoid missed diagnosis and misdiagnosis.
关键词
罕见病/强直性肌营养不良/呼吸衰竭/强直性肌营养不良蛋白激酶
Key words
rare diseases/myotonic dystrophy/respiratory failure/dystrophia myotonica protein kinase