Heberden done denotes involvement of: (A) Distal inetrphalangeal joint, (B) Proximal interphalangel joint, (C) Metacarpophalangeal joint, (D) Metatarsophalangeal joint
Answer is A. In osteoahritis of hand:Distal interphalangeal joint: Heberden's nodeProximal interphalangeal joint: Bouchard's node(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 88, 101, 127)