kerion
Pronunciation: KEE-ree-on
A severe, inflammatory type of tinea capitis presenting as a boggy, pustular scalp mass with associated hair loss.
Full Definition
Kerion represents the most severe inflammatory variant of tinea capitis, characterized by a boggy, tender scalp mass with pustulation, crusting, and significant hair loss in the affected area. This condition results from an intense host inflammatory response to dermatophyte infection, most commonly caused by zoophilic organisms such as Microsporum persicolor or Trichophyton verrucosum. In pediatric dermatology practice, kerion requires prompt recognition and systemic antifungal therapy, as topical treatments are ineffective. Documentation should include size, drainage characteristics, and associated lymphadenopathy. Despite its alarming appearance, appropriate treatment typically results in complete resolution, though temporary scarring may occur.
Usage
Usage note: Requires systemic therapy; topical antifungals are insufficient. Document drainage and culture results.
In Context
- "The boggy scalp lesion with pustulation was consistent with kerion requiring systemic antifungal therapy." — pediatric dermatology consultation
- "KOH preparation from the kerion showed abundant fungal hyphae and spores confirming the diagnosis." — diagnostic procedure documentation