Ace the Case: A 55-Year-Old Woman With Bilateral Hand Pain
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Correct Answer: A.
Rationale: The current patient likely has generalized hand OA. Conventional radiography of patients with OA typically shows joint space narrowing, marginal osteophytes, subchondral sclerosis, and cysts.8 Findings of periarticular osteopenia and erosion would be seen in rheumatoid arthritis. Findings of pencil-in-cup deformity and periostitis with new bone formation are suggestive of psoriatic arthritis.