Instructions
You are a medical student on placement in general practice. Jason Wu, 35, has had a scaly rash on his elbows and knees for a year. The GP has diagnosed psoriasis and asked you to explain it and the treatment.
Take a focused history
Explain the diagnosis and the treatment plan to the patient
GP examination today
Silvery, well-demarcated plaques on both elbows, both knees and the scalp margin; pitting of several fingernails