Final answer:
Histopathologic features of epithelial dysplasia include atypical cells and loss of normal tissue architecture, which indicate abnormal cellular development and possible pre-malignant conditions.
Step-by-step explanation:
Among the histopathologic features of epithelial dysplasia, the presence of atypical cells and loss of normal tissue architecture stands as a key characteristic. Dysplasia in epithelial tissue implies an abnormal development leading to disorganized cell growth, changes in the size and shape of cells, and loss of alignment of cells. This alteration in the typical tissue structure often precedes malignancy and is of significant concern in pathology.
The other options provided, namely the presence of Candida hyphae, thickened stratum corneum, and proliferation of fibrous tissue, are features associated with various fungal infections and other conditions, but not primarily indicative of epithelial dysplasia. For instance, the presence of Candida hyphae would suggest a fungal infection like candidiasis, rather than dysplasia.