MCQ – 88625


A 26 year old male had multiple small hypopigmented macules on the upper chest & back for the last 3 months . The macules were circular , arranged around follicles & many had coalesced to form large sheets . The surface showed fine scaling . He had similar lesions one year ago which subsided with treatment . The most appropriate investigation to confirm the diagnosis is :

A. Slit skin smear


Tzanck smear


Potassium hydroxide mount


Skin biopsy

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