Prosthetic aortic valve stained with methenamine silver stain showing a mixture of yeast and hyphal forms in a patient with Histoplasma capsulatum endocarditis.
Reproduced with permission from: Riddell J 4th, Kauffman CA, Smith JA, et al. Histoplasma capsulatum endocarditis: Multicenter case series with review of current diagnostic techniques and treatment. Medicine 2014; 93:186. DOI:
10.1097/MD.0000000000000034. Copyright © 2014 Lippincott Williams & Wilkins. Unauthorized reproduction of this material is prohibited.