Figure 1

Quick Quiz

What proportion of patients with psoriasis may develop accompanying arthritis?

A 70-year-old female with psoriasis presents with a four-month history of worsening arthralgia. She mentions she has pain and stiffness in her big toes and most of her fingers. On examination, a telescoping finger deformity is seen on her right second digit. What proportion of patients with psoriasis may develop accompanying arthritis? Image credit: @Derminator.