Alpha-sarcoglycan-related limb-girdle muscular dystrophy R3

What is Alpha-sarcoglycan-related limb-girdle muscular dystrophy R3?

A subtype of autosomal recessive limb-girdle muscular dystrophy characterized by childhood onset of progressive proximal weakness of the shoulder and pelvic girdle muscles, resulting in difficulty walking, scapular winging, calf hypertrophy and contractures of the Achilles tendon, which lead to a tiptoe gait pattern. Cardiac and respiratory involvement is rare.

Other condition names

  • Alpha-sarcoglycan-related LGMD R3
  • Alpha-sarcoglycanopathy
  • Autosomal recessive limb-girdle muscular dystrophy type 2D
  • LGMD due to alpha-sarcoglycan deficiency
  • LGMD type 2D
  • LGMD2D
  • Limb-girdle muscular dystrophy due to alpha-sarcoglycan deficiency
  • Limb-girdle muscular dystrophy type 2D

Inheritance type

Autosomal recessive

Age of Onset

  • Adolescent
  • Childhood
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on "". Data version 1.3.16 / 4.1.7.