All of following are examples of proximal muscle weakness EXCEPT?
Myasthenia gravis
Thyroid myopathy
Myotonic dystrophy
Duchenne's muscular dystrophy
Myasthenia gravis Features Eye muscle weakness, Ptosis, Diplopia In contrast, all myopathies have a proximal weakness (an exception being Myotonic dystrophy, which has a distal weakness).
Myasthenia Gravis and Muscular dystrophy