All of the following are associated with proximal muscle weakness EXCEPT: -
Spinomuscular atrophy
Duchenis muscular dystrophy
Polymyositis
Myotonic dystrophy
Ans. is 'd' is myotonic dystrophy The general rule in that:Myopathies have proximal muscle weakness.neuropathies have distal muscle weakness.Myotonic dystrophy is an exception to this general rule and mainly involves the distal muscles.
Disorders of Muscle and Muscular Dystrophies