SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/716696006
http://purl.bioontology.org/ontology/SNOMEDCT/716696006
Preferred Name

Autosomal dominant centronuclear myopathy

Definitions
A rare, autosomal dominant congenital myopathy characterized by numerous centrally placed nuclei on muscle biopsy and clinical features of a congenital myopathy (hypotonia, distal/proximal muscle weakness, rib cage deformities sometimes associated with respiratory insufficiency), ptosis, ophthalmoparesis and weakness of the muscles of facial expression with dysmorphic facial features. An inherited neuromuscular disorder defined by numerous centrally placed nuclei on muscle biopsy and clinical features of a congenital myopathy. The exact prevalence remains unknown. Most commonly, the age of onset is in adolescence, although earlier presentations in infancy or childhood have been reported. Muscle weakness of variable severity is the major clinical manifestation. Mutations in the dynamin 2 (DNM2) gene on chromosome 19p13.2 are responsible. A rare, autosomal dominant congenital myopathy characterised by numerous centrally placed nuclei on muscle biopsy and clinical features of a congenital myopathy (hypotonia, distal/proximal muscle weakness, rib cage deformities sometimes associated with respiratory insufficiency), ptosis, ophthalmoparesis and weakness of the muscles of facial expression with dysmorphic facial features.
Synonyms
Autosomal dominant centronuclear myopathy (disorder)
Type http://www.w3.org/2002/07/owl#Class
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