Pyoderma gangrenosum is a rare inflammatory ulcerative skin disease of unknown etiology. We report an image of a patient with pyoderma gangrenosum who presented right leg ulcers with violaceous margins, histologically characterized by mono- and polynuclear cell infiltrates. The patient was successfully treated with cyclosporin A.
Keywords: chronic diseases; dermatology; immunology; rheumatology; surgery.
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