Which microscopic finding is consistent with thrush?

Which microscopic finding is consistent with thrush?

• A. Budding yeasts, pseudohyphae
• B. Cocci
• C. Rods, spores, cocci
• D. Spores

Answer: (A)

Oral thrush is caused by Candida species. Under the microscope, the hallmark finding is budding yeast cells accompanied by pseudohyphae. The buds are small daughter cells that remain attached to the mother cell, giving a budding appearance, while pseudohyphae are elongated structures with constrictions at the points where cells join, producing a filamentous look that isn’t true hyphae. This combination—budding yeasts with pseudohyphae—is characteristic of Candida infections and helps distinguish thrush from other organisms. In practice, examining oral scrapings with Gram stain or a KOH prep often reveals these budding yeasts and pseudohyphae, confirming thrush.

Oral thrush is caused by Candida species. Under the microscope, the hallmark finding is budding yeast cells accompanied by pseudohyphae. The buds are small daughter cells that remain attached to the mother cell, giving a budding appearance, while pseudohyphae are elongated structures with constrictions at the points where cells join, producing a filamentous look that isn’t true hyphae. This combination—budding yeasts with pseudohyphae—is characteristic of Candida infections and helps distinguish thrush from other organisms. In practice, examining oral scrapings with Gram stain or a KOH prep often reveals these budding yeasts and pseudohyphae, confirming thrush.