Gangrenous pyoderma is a rare complication of surgical treatment mimicking bacterial necrotizing fasciitis. The characteristic symptoms include a pre-existing immune disorder, negative results of the relevant microbiological examinations, no response to any antibiotic therapy, and deteriorating of the condition after radical debridement. Another typical feature is a discrepancy between an ominous appearance of the wound accompanied by leucocytosis and an elevated CRP level, and the patient s good general condition with low-grade fever and no signs of sepsis. The case of a 68-year-old man who underwent an elective open reconstruction of rotator cuff tears of the left shoulder is presented. The surgery was complicated with pyoderma gangrenosum that was first treated unsuccessfully by repeated revision surgery and broad-spectrum antibiotic therapy. The patient was ultimately cured with corticosteroids. The sequellae included limited motion of the shoulder joint and extensive destruction and scarring of the adjacent soft tissue.
Key words: gangrenous pyoderma, necrotizing fasciitis, corticosteroids.