29th September 2020

A 40-year-old gentleman presents with considerable pain in his fingers

A 40-year-old gentleman presents with considerable pain in his fingers. On examination his fingers appear swollen and there is onycholysis of the nails, generally worse on the left than the right. In his medical history he describes no formally diagnosed conditions, although since childhood he has suffered with scaly rashes on his arms.

For the patient above, please select the SINGLE most likely diagnosis. Select ONE option from the list above.