What role does histology play in diagnosing fungal infections?
Fungal infections are identified histologically by the presence of fungal elements like hyphae and spores in tissue sections. Special stains such as Gomori methenamine silver (GMS) and Periodic Acid-Schiff (PAS) are used to highlight these structures. For example, in aspergillosis, septate hyphae with acute-angle branching are typically observed.