<prompt> Which of the following is not a feature of rheumatoid ahritis?Heberden nodesSwan neck deformityUlnar detion of fingers at metacarpopalyngeal jointSymmetric reduction of joint space  <response>: Heberden does is a feature of osteoahritis and not rheumatoid ahritisImpoant hand deformities of hand in RABoutonniere deformity: flexion contracture of PIP joint and extension DIP jointSwan neck deformity: hyperextension of PIP joint and flexion at DIP jointRefer: Mohindras Fundamentals of Ohopedics, 2nd edition, pg no. 88, 101, 127 