Ulcerative pyoderma gangrenosum (PG) is defined as a skin gangrene with crumbling, greasy ulcerations lacking a microbiological genesis. In approximately 12% of cases of chronically nonhealing wounds, PG is reported to be the cause.1 It is a dermatosis and a noninfectious inflammatory skin disease with an immunological background.2,3 The appearance of PG in the area of the head and neck is rare and may well be misdiagnosed.
Claus Wittekindt, Jan-Christoffer Lüers, Jens-Peter Klussmann, Karl-Bernd Hüttenbrink. Pyoderma Gangrenosum in the Head and Neck. Arch Otolaryngol Head Neck Surg. 2007;133(1):83–85. doi:10.1001/archotol.133.1.83