In which of the following deformities is the distal interphalangeal joint flexed and proximal interphalangeal joint extended ?: (A) Boutonierre Deformity, (B) Swan neck deformity, (C) Z deformity, (D) Claw Hand
Answer is B. Answer- B. Swan neck deformitySwan neck deformity: Hyperextension of PIP joint and flexion at DIP joint.