Superficial Granulomatous Pyoderma Gangrenosum Involving the Face: A Case Series of Five Patients and a Review of the Literature [Formula: see text].

Background: Pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis characterized by painful and ulcerating lesions on the skin. It rarely involves the face and is often difficult to diagnose. There are few cases reported in the literature of PG involving the face.