fig3

Figure 3. A 34-year-old male patient with a nasal mass. Histology of the nasal mass showing vasculitis (black arrow), granulomatous reaction (white arrows), and areas of necrosis (green arrow) [H&E, ×200 (original magnification), scale bar = 100 µm]. (Courtesy of Dr. Maha Emad Eldein, Lecturer of Pathology, Department of Pathology, Faculty of Medicine, Cairo University, Egypt).