Neutrophilic dermatoses are characterized histopathologically by a normal polymorphonuclear leukocyte infiltrate, and they are frequently associated with other systemic diseases. Pyoderma Gangrenosum of the Penis - A Potentially Dramatic Skin Disease Pyoderma gangrenosum (PG) is a reactive inflammatory skin disorder that is part of the spectrum of neutrophilic dermatoses. One year before his presentation to our department,the patient had noted a painful ulcer in the posterior surface of the neck of the glans that soon expanded. It expands rapidly, and it can be quite destructive.

Penile involvement is quite rare, but because the penis is a very tissue-sensitive area, prompt diagnosis and treatment is crucial. Ulcerative (the most common), pustular,bullous, and vegetative.2 Ulcerative PG usually presents as a painful, necrolytic ulcer with an erythematous or violaceous, undermined border. We report the alix of a 17-year-old, previously healthy, boy who was referred to our department by his urologist for a genital ulcer that had given rise to a urethral fistula that had failed to heal after two plastic reconstructions with skin grafts. PG most commonly appears on the lower extremities, but any cutaneous or mucocutaneous site can be affected.

PG includes four recognized types.