Surgery General 4b36366d 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 High-Yield Explanation Answer is A (Erosion): SLE is characterized by non erosive ahritis while bone erosions are characteristic in Rheumatoid Ahritis.