Figure. Chrysosporium sp. fungal infection in eastern massasagauga rattlesnake (Sistrurus catenatus catenatus). A) Facial dermatitis and cellulitis caused by Chrysosporium sp. infection in rattlesnake from Carlyle, Illinois, USA; B) close-up showing maxillary fang destruction. C) Maxillary dermal and subcutaneous fungal granuloma (circled area). Hematoxylin and eosin stain, original magnification ×2, scale bar = 500 μm. D) Granuloma center with large numbers of fungal hyphae. Grocott methenamine silver stain, original magnification ×10, scale bar = 100 μm.
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