Bullous pyoderma gangrenosum in a child

We report a rare case of a bullous type of pyoderma gangrenosum in a pediatric patient. A 3-year-old female patient visited our department with recurrent hemorrhagic bullae and erosive patches for 1 year. Skin biopsy revealed a subepidermal blister with diffuse neutrophilic infiltrations in the dermis. The diagnosis of bullous pyoderma gangrenosum was made by exclusion of other diseases via bacterial culture, laboratory, and immunofluorescence studies. The skin lesions responded well to a low dose of systemic corticosteroid, but the lesions recurred frequently.