Mitochondrial myopathy.
D000328:Adult; D006177:Gynecomastia / Q000473:pathology; D006331:Heart Diseases / Q000473:pathology; D006801:Humans; D006996:Hypocalcemia / Q000473:pathology; D008297:Male; D008853:Microscopy; D008854:Microscopy, Electron; D008931:Mitochondria, Muscle; D009132:Muscles / Q000473:pathology*; D009135:Muscular Diseases / Q000145:classification / Q000473:pathology*; D009136:Muscular Dystrophies / Q000473:pathology*