Mitochondrial myopathy with respiratory dysfunction: a case report.

A 50-year-old woman who presented with infective bronchiectasis and respiratory insufficiency was reported. Mitochondrial myopathy was diagnosed from a long history of chronic bilateral ptosis and external ophthalmoplegia with muscle wasting. Muscle biopsy revealed ragged-red fibers. After treatment with appropriate antibiotic and respiratory assistance, the patient improved and returned to her usual state of health.