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
Following are listed as (SpA) spondyloahritis features except
assistant
The correct answer is  The spondyloahritides is a group of overlapping disorders that share ceain clinical features and genetic associations. These disorders include ankylosing spondylitis (AS), reactive ahritis, psoriatic ahritis and spondylitis, enteropathic ahritis and spondylitis, juvenile onset spondyloahritis (SpA), and undifferentiated SpA. The similarities in clinical manifestations and genetic predisposition suggest that these disorders share pathogenic mechanisms. Reference: Harrison&;s Principles of Internal Medicine; 20th edition; Chapter 384;