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Tinea Nigra Definition & Overview

Definition

Tinea nigra is a type of dermatomycosis. A dermatomycosis is a fungal infection of the skin. Tinea nigra affects the outermost layer of skin, called the stratum corneum. Tinea nigra causes a black or brown patch on the skin. Although a patch of tinea nigra may be mistaken for the more serious skin discolorations of melanoma, tinea nigra is actually a very benign condition that often causes no symptoms apart from its appearance.

Cross-Section of Skin

skin layers cross section
Tinea nigra affects the topmost layer of skin.
© 2009 Nucleus Medical Art, Inc.

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