Which finding is NOT typical of thrush on examination and would be expected as the exception?

Which finding is NOT typical of thrush on examination and would be expected as the exception?

• A. Hyphae
• B. Yeast
• C. Positive KOH
• D. Spores

Answer: (D)

Thrush (oral candidiasis) is caused by Candida species, most commonly Candida albicans. On examination and microscopy, you expect to see budding yeast cells and often hyphal forms (including pseudohyphae) as the organism invades or colonizes the mucosa. A potassium hydroxide (KOH) prep is used to clear background material, making fungal elements like yeast cells and hyphae easier to visualize, so a positive KOH result is typical. Spores are not a characteristic feature of Candida in the oral cavity; they’re not normally produced in this setting, making spores the unusual finding.

Thrush (oral candidiasis) is caused by Candida species, most commonly Candida albicans. On examination and microscopy, you expect to see budding yeast cells and often hyphal forms (including pseudohyphae) as the organism invades or colonizes the mucosa. A potassium hydroxide (KOH) prep is used to clear background material, making fungal elements like yeast cells and hyphae easier to visualize, so a positive KOH result is typical. Spores are not a characteristic feature of Candida in the oral cavity; they’re not normally produced in this setting, making spores the unusual finding.