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Muscular dystrophy, limb-girdle, autosomal recessive 23

Summary

Excerpted from the GeneReview: LAMA2 Muscular Dystrophy
The clinical manifestations of LAMA2 muscular dystrophy (LAMA2-MD) comprise a continuous spectrum ranging from severe congenital muscular dystrophy type 1A (MDC1A) to milder late-onset LAMA2-MD. MDC1A is typically characterized by neonatal profound hypotonia, poor spontaneous movements, and respiratory failure. Failure to thrive, gastroesophageal reflux, aspiration, and recurrent chest infections necessitating frequent hospitalizations are common. As disease progresses, facial muscle weakness, temporomandibular joint contractures, and macroglossia may further impair feeding and can affect speech. In late-onset LAMA2-MD onset of manifestations range from early childhood to adulthood. Affected individuals may show muscle hypertrophy and develop a rigid spine syndrome with joint contractures, usually most prominent in the elbows. Progressive respiratory insufficiency, scoliosis, and cardiomyopathy can occur.
Full text of GeneReview (by section):
Summary
GeneReview Scope
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
References
Chapter Notes
Authors:
Jorge Oliveira
João Parente Freixo
Manuela Santos
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Available tests

24 tests are in the database for this condition.

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Clinical tests (24 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: LAMM, MDC1A, LAMA2
    Summary: laminin subunit alpha 2

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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