<unk>  is a mitochondrial disorder featuring the triad of: 
Chronic progressive external ophthalmoplegia
Cardiomyopathy with heart block
Retinitis pigmentosa
Kearns-Sayer syndrome
Kearns–Sayre syndrome
Braun-Bayer syndrome
Fox-Fordyce disease
Aarskog-Scott syndrome
Sohval-Soffer syndrome
Kashani-Strom-Utley syndrome
Cruveilhier-Baumgarten syndrome