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Article
May 1966

Improved Preparation for the Diagnosis of Mycologic Diseases

Author Affiliations

MIAMI, FLA

From the Department of Dermatology, University of Miami, School of Medicine, Miami, Fla.

Arch Dermatol. 1966;93(5):608-609. doi:10.1001/archderm.1966.01600230112027
Abstract

The direct demonstration of fungi in skin, nail, or hair scrapings is facilitated by dissolving the alkaline clearing agent, potassium hydroxide (20%), in a solvent of 60% water and 40% dimethyl sulfoxide (DMSO). With this reagent, hyphae can often be seen as well in one minute without heating as in 20 minutes or more with the classical plain aqueous alkaline solution. The DMSO-containing reagent is not recommended if more than 20 minutes will elapse between preparation of specimen and microscopic examination.

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