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.
Wittekindt C, Lüers J, Klussmann J, Hüttenbrink K. Pyoderma Gangrenosum in the Head and Neck. Arch Otolaryngol Head Neck Surg. 2007;133(1):83-85. doi:10.1001/archotol.133.1.83