ABSTRACT
This is usually a chronic condition and patients present with weakness of the hand(s) or numbness/tingling. They may have noticed muscle wasting. The small muscles of the hand are supplied by the median and ulnar nerves and the C8/T1 roots. Test coordination and all the reflexes in the upper limbs. Co-morbid diabetes mellitus is a common risk factor that predisposes to severe focal compressive neuropathy of both the median and ulnar nerves but is not invariably present. Sensory loss should be limited to the median and ulnar nerve distributions, and not extend above the wrist. Certain patterns of neurological signs associated with wasting of the small muscles of the hand are characteristic of the following.
