<prompt> A 40-year-old female previous case history of fever, fatigue, weight loss polyarthralgia. The radiological findings given below, what may be your diagnosis?OsteoarthritisRheumatoid arthritisGoutPsoriatic arthritis  <response>: Ans. b. Rheumatoid arthritisThe radiological finding shows swan neck deformity, it is the clue for RA.Boutonniere deformity also seen in RA.Osteoarthritis: Heberden nodes and Bouchard nodes are seen.Psoriatic arthritis: Pencil-in-cup deformity of DIP on X-ray.For more details see orthopedic last minute revision Table No. 25 