Image of the Week: Worsening arthralgia in a patient with psoriasis

A 70-year-old woman with psoriasis presents with a 4-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? Learn more about this case, take the quiz, and join the conversation on Figure 1.

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