Type: Neuromuscular
Becker muscular dystrophy
Milder allelic Duchenne variant; later onset, slower progression, cardiomyopathy may dominate.
Facioscapulohumeral muscular dystrophy
Dystrophy with facial, scapular and humeral weakness, often asymmetric, descending progression.
Inclusion body myositis
Commonest acquired myopathy after 50 with finger-flexor and quadriceps weakness; often immunotherapy-refractory.
Kennedy disease
X-linked lower motor neuron disorder with bulbar/limb weakness and androgen insensitivity features.
Limb-girdle muscular dystrophy
Heterogeneous dystrophies affecting shoulder and pelvic girdle muscles; many genetic subtypes.
Myotonic dystrophy
Multisystem dystrophy with myotonia, weakness, cataracts, cardiac conduction defects; commonest adult-onset MD.
Myotubular myopathy
Severe congenital myopathy with neonatal hypotonia and respiratory failure from myotubularin deficiency.
Duchenne Muscular Dystrophy
A severe X-linked muscular dystrophy caused by dystrophin deficiency; corticosteroids, exon-skipping agents and gene therapy are used in eligible patients.