Inflammatory tinea capitis is the result of a hypersensitivity reaction to a dermatophytic infection. The usual forms are favus, kerion celsi, dermatophytic Majocchi granuloma, and mycetoma. Inflammatory tinea capitis can be caused by Microsporum canis, Trichophyton mentagrophytes, T tonsurans, T rubrum, and M gypseum. Histopathologic findings include a spectrum from mild suppurative folliculitis to dense granulomatous infiltrates. In mycetoma, grains must be present.
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