Congenital cataract - hypertrophic cardiomyopathy - mitochrondrial myopathy (CCM) is a mitochondrial disease (see this term) characterized by cataracts, hypertrophic cardiomyopathy, muscle weakness and lactic acidosis after exercise. The disease is Congenital cataract - hypertrophic cardiomyopathy - mitochondrial myopathy (Orphanet_1369). Also known as: Sengers syndrome.