system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Ahritis mutilans is a feature of?
assistant
The correct answer is  PSORIATIC AHRITIS Classical (DIP type) most commonly involving the distal interphalangeal joints and less commonly the knees, hips, ankles, and wrists; Asymmetric oligo-aicular type (MC type) Symmetrical polyaicular type Disease limited to the spine (psoriatic spondylitis). Ahritis mutilans(X-Ray shows pencil in cup sign, pestle in moar sign)