Diagnosis: Onychomycosis. (Tinea unguium)

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Clinical diagnosis: Onychodystrophy r/o Onychomycosis.

Specimen: Toenail clipping.

Stain: PAS (Periodic acid Schiff)

Observe: Numerous fungal hyphae in the zone of shaggy, subungual hyperkeratosis, along the undersurface of the nail plate.

Links to Pub Med

Methods of Diagnosis: A comparison
Nail clippings: Histopathologic diagnosis with PAS stain


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