Which radiological feature would help differentiate rheumatoid ahritis with SLE?: (A) Erosion, (B) Juxta-aicular osteoporosis, (C) Subluxation of MCP joint, (D) Swelling of PIP joint
Answer is A. Answer is A (Erosion): SLE is characterized by non erosive ahritis while bone erosions are characteristic in Rheumatoid Ahritis.