Mr W is a 49 year old gentleman who works in a factory as a packer. Over the past two weeks he has been noticing an intermittent pain in his right forearm and hand, which is now becoming more persistent.
Occasionally he also experience numbness in his thumb and index finger. The numbness follows after a short period of pins and needles.
The following is a summary of his GP's notes:
History:
Pain, numbness and pins and needles in right forearm – especially in right wrist, thumb and index finger
Pain is usually worse in the afternoons and early evening.
Patient also mentions at times that his grip is affected.
Patient works in a factory as a packer.
No medical history or surgical history
On Examination:
- Normal general and physical examination
- Right hand and forearm: normal power and reflexes. On bending on the wrist, patient experiences a sensation of slight pins and needles in thumb.
- Normal vital signs and urine test
Based on the information above, what is the most likely diagnosis?
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