Arthritis in a patient with severe psoriasis: Narrowing the differential
August 29, 2009
An 84-year-old woman presented with pain and swelling in her knees and hands. She had a history of severe psoriasis and osteoarthritis. How can you make a differential diagnosis when OA may coexist with rheumatoid arthritis, psoriatic arthritis, OA, and crystal arthritis? Read on to find out.