A middle aged female presents with polyahritis with elevated rheumatoid factor ANA analevels, which among the following will help you to differentiate rheumatoid ahritis from SLE?: (A) Soft tissue swelling at the proximal inter phalangial joint, (B) Juxta aicular osteoporosis or X-ray, (C) Aicular erosions on X-ray, (D) Elevated ESR
Answer is C. Joint erosions is not a feature of SLE . It is only seen in some conditions such as Rheumatoid ahritis Gout Psoriatic ahritis Reiter's disease Erosive OA Hemophilia IBD Ankylosing spondolytis Ref - pubmed.com