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LCDR Joseph R. McKinlay, MC, USNR; CAPT Terry L. Barrett, MC, USNR; CDR E. Victor Ross, MC, USN
From the Departments of Dermatology and Clinical Investigation, Naval Medical Center, San Diego, San Diego, Calif.

Arch Pediatr Adolesc Med. 1999;153:305-306.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

AN ADOLESCENT girl has a 7-year history of an asymptomatic brown patch on her left palm (Figure 1). Figure 2 shows a potassium hydroxide preparation of a scraping from the lesion.

Figure 1.

Figure 2.

Denouement and Discussion: Tinea Nigra

Figure 1. A 3x3-cm tan patch with central clearing is present on the left palm.

Figure 2. Olive hyphae are present on the potassium hydroxide preparation.

Tinea nigra, also known as "tinea nigra palmaris" because of its predilection for the palm, is an asymptomatic superficial fungal infection of the stratum corneum caused by Phaeoannellomyces werneckii, also known as Exophiala werneckii and Cladosporium werneckii. Tinea nigra is uncommon in the United States, being much more prevalent in warm, humid parts of the world such as the Central and South Americas, . . . [Full Text of this Article]