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144: Tinea Capitis: (Ringworm of the Scalp)
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Published:January 2023
"Tinea Capitis: (Ringworm of the Scalp)", Red Book Atlas of Pediatric Infectious Diseases, Tina Q. Tan, MD, FAAP
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Dermatophytic fungal infections of the scalp usually manifest with an area of localized alopecia and scaling but may include subtle findings of mild hair loss with faint scaling or a large hairless, boggy erythematous area (kerion). Other manifestations include a common “black dot” pattern reflecting stubs of broken-off hairs at the scalp surface; a less common “gray patch” pattern with prominent, well-demarcated alopecic areas of scaling and erythema; or a vesiculopustular pattern resembling bacterial folliculitis. Regional lymphadenopathy may be present.
The differential diagnosis for tinea capitis depends on the clinical manifestation. In the classic scaling manifestation, clinicians should consider atopic...