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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.
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Ulcterative colitis associated features include all except:
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The correct answer is  Bloody diarrhea is the hallmark feature of ulcerative colitis. Extracolonic manifestations include: Erythema nodosum Pyoderma gangrenosum Episcleritis Iritis Thrombo-embolic events Oligo-aicular, non-deforming ahritis. In patients who are HLA B27-seropositive, there may be anterior uveitis or ankylosing spondylitis which is independent of colitis activity.