[Pyoderma gangrenosum and orbital pseudotumor].

Pyoderma gangrenosum belongs to the chronic, neutrophilic and necrotic dermatoses. These very painful, inflammable and purulent skin-ulcers often arise after injury or surgical intervention. About half of the patients suffer from systemic disease, for example hematological, gastrointestinal or rheumatic diseases. Our report includes a 77-year-old female with a multilocular emergence of pyoderma gangrenosum following surgery for an orbital pseudotumor. An additional lesion was detected on her anterior neck. Because the possibility of wound-infection was suspected, the lesion was treated locally and with a systemic antibiotic therapy. After this treatment the condition of the wound deteriorated. Upon dermatological examination, pyoderma gangrenosum was identified and a immunosuppressive therapy with corticosteroids and cyclosporin was initiated. As a result of this treatment the lesion healed slowly--with the formation of typical, atrophic and reticular scars. A connection between the pyoderma gangrenosum and the orbital pseudotumor can, on the basis of similar clinical and structural characteristics, not be excluded. A related disease was not diagnosed in this patient. Recurrence can be predicted in patients who have had skin injuries, therefore strict observation is required.