Abstract
Ulcerative colitis may be associated with a number of extraintestinal skin manifestations including erythema nodosum and pyoderma gangrenosum. We describe an unusual case of a 26-year-old military pilot with ulcerative colitis and skin lesions diagnosed as leucocytoclastic vasculitis. The skin lesions occurred twice during the severe flare. The first occurrence was treated successfully with corticosteroids. When the lesions recurred several weeks later, concomitant with the ongoing flare, treatment with mesalamine and infliximab resolved the lesions. Ultimately, the patient required total colectomy for flare unresponsive to maximum medical therapy. The leucocytoclastic vasculitis did not recur after colectomy. We propose a potential immunopathophysiologic mechanism linking the 2 conditions based on recent biochemical and clinical research.
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