Ulcterative colitis associated features include all except:

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.