As a note, a patient with true carpal tunnel syndrome ( entrapment of the median nerve within the carpal tunnel ) will not have any sensory loss over the thenar eminence ( bulge of muscles in the palm of hand and at the base of the thumb ).
22.
Numbness in the distribution of the median nerve, nocturnal symptoms, thenar muscle weakness / atrophy, positive Tinel's sign at the carpal tunnel, and abnormal sensory testing such as two-point discrimination have been standardized as clinical diagnostic criteria by consensus panels of experts.
