Acne fulminans is a rare syndrome of fulminant, necrotizing acne associated with bone lesions, constitutional symptoms, and laboratory abnormalities. A case report of an adolescent male with acne fulminans with osteolytic change in metaphysis of the distal radius is presented.
Case reportA 14-year-old Korean male was referred to our hospital due to a 2-week history of painful erythematous pustular eruptions with high fever. He had been diagnosed as having acne vulgaris for the past 2 years and sometimes had been administered antibiotics, including minocycline. He was an otherwise healthy boy and had no remarkable family history. Neither intensive physical training nor steroid use prior to onset of disease was noted. On presentation to our clinic, the patient was ill-appearing, trembling, and complained of severe arthralgias (especially wrist pain) and myalgias. Nodulocystic red papules and pustules were scattered over his face, back, and shoulders, and ulcerations with purulent, thick, yellow adherent crust were scattered on his face (Fig. 1).Abnormal laboratory findings included an increase in leukocytes (12.3 9 10 4 /mm 3 ) and neutrophils (84.3%). C-reactive protein level was moderately high at 5.0 mg/ dl. Radiographs showed osteolytic change in metaphysis of the right distal radius (Fig. 2). Liver transaminase levels were normal. Bacterial cultures from blood and skin lesions were negative.Oral administration of a combination of prednisolone 40 mg/day (0.8 mg/kg daily) and minocycline 200 mg/day resulted in rapid improvement of symptoms. The dose of prednisolone was tapered to 10 mg/day within a period of 2 months, and the skin lesions showed gradual Figure 1 Multiple, scaly and some crusted oozing erythematous papules and pustules with hemorrhagic ulcers on the forehead and both cheeks ª