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The superficial fungal infections include some of the most common infectious conditions, such as ringworm or dermatophytosis and pityriasis versicolor, as well as rare disorders including tinea nigra. Their prevalence varies in different parts of the world, but in many tropical countries they are the most common causes of skin disease.
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Superficial fungal infections arise from a pathogen that is restricted to the stratum corneum, with little or no tissue reaction. In this Seminar, three types of infection will be covered: tinea versicolor, piedra, and tinea nigra.
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