<prompt> Which of the following Is not a feature of rheumatoid arthritis?Heberden nodesSwan neck deformityUlnar deviation of lingers at metacarpopalyngeal jointSymmetric reduction of joint space  <response>: Ans. is a i.e., Heberden nodes o Heberden nodes is a feature of osteoarthritis and not rheumatoid arthritis.Important hand deformities of hand in RAo Boutonniere deformity : Flexion contracture of PIP joint and extension of DIP joint,o Swan neck deformity : Hyperextension of PIP joint and flexion at DIP joint,o Z-deformity : Radial deviation of wrist with ulnar deviation of fingers,o Hyperextension of 1st interphalangeal joint and flexion of MP joint. 