Congenital distal spinal muscular atrophy
Hereditary condition characterized by muscle wasting / From Wikipedia, the free encyclopedia
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Congenital distal spinal muscular atrophy (cDSMA), also known as distal hereditary motor neuropathy (or neuronopathy) type VIII (dHMN8), is a hereditary medical condition characterized by muscle wasting (atrophy), particularly of distal muscles in legs and hands, and by early-onset contractures (permanent shortening of a muscle or joint) of the hip, knee, and ankle. Affected individuals often have shorter lower limbs relative to the trunk and upper limbs. The condition is a result of a loss of anterior horn cells localized to lumbar and cervical regions of the spinal cord early in infancy, which in turn is caused by a mutation of the TRPV4 gene. The disorder is inherited in an autosomal dominant manner.[1] Arm muscle and function, as well as cardiac and respiratory functions are typically well preserved.[2]
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Specialty | Paediatrics, medical genetics |