A 69-year-old woman presented to our clinic as an emergency with erythematous, wellcircumscribed plaques, which were partly vesicular, on her extremities and in her armpits, and additionally hemorrhagic blisters on both her palms and her fingers ( Fig. 1a), which had developed 2 days after the first appearance of the skin lesions. The rapid onset of the lesions (within a few hours) and the pain associated with them were extremely troublesome to the patient. On admission she complained of fever, tiredness and being easily fatigued. Because of a urinary tract infection 1 month prior to admission, trospiumchloride was given. On clinical examination, body temperature was found to be above 38 ° C and infraclavicular lymph nodes were enlarged but not tender. Normal or negative laboratory tests included blood counts, liver and kidney parameters, electrolytes and infection screen. Laboratory examination demonstrated minor leukocytosis and absolute neutrophilia (white blood cell count 10 440 cells/ µ L, neutrophils 8030 cells/ µ L). X-ray screening, abdominal ultrasound and laboratory investigations were all normal.There was no response to antibiotics when erythromycine was given. However, there was a good response to systemic corticosteroids. The patient was treated with a low dosage of prednisolone, beginning at 50 mg/day, which was then tapered off. Skin lesions resolved within 7 days.Histology from a lesion on the patient's left forearm showed a dense interstitial inflammatory infiltration consisting predominantly of neutrophilic granulocytes from the subepidermal layer to the middle of the reticular dermis. Inflammatory cells penetrated into both blood vessels and vessel walls; vasculitis was not prominent. In the lower dermis, perivascular infiltrations of lymphomononuclear cells were found. In addition, intraepidermally multiple partly confluent vesicles, with inclusions of neutrophilic granulocytes, were found, confirming the diagnosis of this rare variant of an acute febrile neutrophilic dermatosis (Fig. 1b).