Question

which of the following radiographic features can help differentiate psoriatic arthritis from rheumatoid arthritis? lack of osteopenia soft tissue swelling bilateral hand invovlement joint erosions

Explanation:

Psoriatic arthritis often lacks osteopenia which is more common in rheumatoid arthritis. Soft - tissue swelling, bilateral hand involvement, and joint erosions can be seen in both conditions.

Answer:

Lack of osteopenia