A patient suffering from morning stiffness >1 hour, presents with the following abnormality in the X-ray. What can be the most possible diagnosis:: (A) Psoriatic arthritis, (B) Rheumatoid arthritis, (C) Osteoarthritis, (D) Relapsing polychondritis
Answer is B. Ans. B Rheumatoid arthritisClassic Swan neck deformityQ (DIP joint flexion and PIP joint extension) with marked changes at the radiocarpal joint.