fig9

Figure 9. Facial pyoderma gangrenosum similar to ulcers, a rare presentation in two cases of granulomatosis with polyangiitis (courtesy of Dr. Luca Quartuccio, Associate Professor of Rheumatology, Department of Medicine, Udine University and Dr. Enzo Errichetti, Clinic of Dermatology, Department of Medicine, Academic Hospital “Santa Maria della Misericordia” (ASUFC), Udine, Italy).