Spot Dx — What is causing these palmar patches?

Bec is a 34-year-old office worker with a six-month history of a recurrent rash on the hands following development of oral and genital ulcers.

Test your clinical know-how by taking the quiz below. If you select the wrong answer, have another go — you can try as many times as you like!

Bec is a 34-year-old office worker with a six-month history of a recurrent rash on the hands following development of oral and genital ulcers.

She has had three episodes. Each time, she experienced initial dysuria and frequency, followed by painful oral and genital ulcers and a palmar rash 1-3 days later.