MSFinals-2475
A 35-year-old female accountant presents to her local urgent care centre with a 4 day history of right side thumb and wrist pain. She complains of pain down the dorsal aspect of her thumb towards the radial aspect of her wrist which occurs when she is at work and using her computer mouse for extended periods of time. She reports the pain is not present at rest.
During examination, you are able to reproduce the pain when she abducts her thumb against resistance. The patient also reports pain when you palpate over her radial styloid process. There is no other sensory or motor deficits in the remainder of your examination. There does not appear to be any erythema or swelling that you note.
What is the likely diagnosis based on these findings?