Multilocular vegetating pyoderma gangrenosum

Vegetative pyoderma gangrenosum is a nonaggressive,chronic,superficial vari ant pyoderma gangrenosum. Unlike classic ulcerative pyoderma gangrenosum, t he lesions are less deep and not painful,and the borders are not undermined . The base of ulcers usually shows granulation tissue. The histopathologic findings are characterized by superficial granulomas. Cultures for fungal o r bacterial infections normally are negative. Vegetative pyoderma gangrenos um is seldom associated with systemic diseases and often responds to simple modes of therapy. Our patient had a 10 years history of superficial ulcers on face, trunk and upper arms, whose general health was not impaired. a br oad diagnostical evaluation showed no systemic diseases. The histologic pat tern demonstrated a granulomatous dermatitis. After exclusion of other caus es, we believe the patient has the vegetative form of pyoderma gangraenosum . There was no improvement with local treatment. Only systemic therapy with corticosteroids and later on cyclosporine led to healing.