Figure 3. Sections of the mass showing tan-brown to dark red, hemorrhagic, spongy parenchyma with tan-white fibrous tissue (A). Low magnification showing superficial mucosal ulceration with hemorrhage and granulation tissue, deep lobular proliferation of capillaries with central dilated vessels, separated by fibrous bands (Hematoxylin and Eosin) (B). Higher magnification showing ulceration of respiratory mucosa with hemorrhage, granulation tissue, and inflammation, (Hematoxylin and Eosin) (C). Lobular proliferation of capillaries with central dilated larger vessels (Hematoxylin and Eosin) (D). (Microsoft Photos, Version 2020.20120.4004.0, Microsoft).