Hematoxylin–Eosin Histology for Detection of Dermatophytosis: A Retrospective Cohort Selection Diagnostic Accuracy Study

Experienced dermatopathologists can usually identify dermatophytosis with H&E staining. These findings indicate that PAS testing should be selectively applied to cases with suspected dermatophytosis where no organisms are visible on H&E, on nail clips where H&E may be unreliable, and in evaluations by non-dermatopathologists.