Pseudomonas aeruginosa O-11 folliculitis. Development into ecthyma gangrenosum in immunosuppressed patients

Abstract

• Six immunocompromised patients were shown to exhibit<i>Pseudomonas aeruginosa</i>folliculitis in apocrine regions similar to "swimming pool" folliculitis. The lesions evolved within 24 hours as severe ecthyma gangrenosum. The source of the<i>P aeruginosa</i>, serotype O-11, was found in the water system of the hospital. Clinical identification of the lesions and early treatment is important to prevent severe manifestations. (<i>Arch Dermatol</i>1985;121:873-876)