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Carpal tunnel syndrome
Typical area of diminished pinprick sensation (posterior ) in CTS
From the personal collection of Dr Nigel Ashworth; used with permission
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Carpal tunnel syndrome
Weak abduction of the thumb (4/5) on both sides but no thenar wasting
From the personal collection of Dr Nigel Ashworth; used with permission
See this image in context in the following section/s:

Carpal tunnel syndrome
Typical area of diminished pinprick sensation (anterior) in CTS; note sparing of thenar eminence (supplied by palmar branch of median nerve), and that right hand has more extensive loss than left
From the personal collection of Dr Nigel Ashworth; used with permission
See this image in context in the following section/s:
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