Final answer:
Tinea Versicolor can be diagnosed using a Wood's lamp to visualize the fluorescence of fungal elements. Direct microscopic evaluation of specimens and culturing on Sabouraud's agar are other methods for diagnosis.
Step-by-step explanation:
The diagnostic feature of Tinea Versicolor can be observed using a Wood's lamp. The ultraviolet light emitted by the Wood's lamp causes the fungal elements (spores and hyphae) to fluoresce, helping to identify the presence of the fungus.
Another diagnostic method is direct microscopic evaluation of specimens collected from the affected area. Positive identification of dermatophytes requires culturing on Sabouraud's agar, where specific features of the culture can indicate the type of fungus involved.