Kerion

Overview of Kerion

A kerion is a soft, boggy area of skin that occurs in relationship to inflammation caused by tinea capitis. It is not the result of bacterial infection. When it occurs in the hair bearing portion of the scalp, scarring and permanent hair loss occurs. Somewhere between 5 and 30% or people afflicted with tinea capitis will develop this disorder.

Causes of Kerion

Kerion is associated with the development of allergic sensitization to a fungi.

Signs and Symptoms of Kerion

The symptoms are primarily that of a elevated, tender mass in the scalp. Small pustules develop on the lesion. Rupture of the pustules can lead to purulent drainage from the scalp. Loss of hair is usually temporary, although it may become permanent. When it does occur, it is often related to secondary bacterial infection. Enlarged lymph nodes may be found in the neck. The lesions usually are self-limited and often heal over 4-6 weeks.

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Medical Content Last Updated on 07/12/2008

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