An 8-year-old boy has localized non-cicatricial alopecia over scalp with itching and scales. Most likely diagnosis is: (LQ)
Tinea capitis or ringworm of the scalp occurs exclusively in children. It invades the stratum corneum of the scalp and the hair cuticle causing pink, scaling patches on the scalp and areas of hair loss due to breakage of hair shafts.
The predominant organism of tinea capitis is T. tonsurans2 in USA, T.violaceum in India.
Oral administration of griseofulvin (15-20 mg/kg/24 hour) is the recommended treatment for all forms of tinea capitis. It may be necessary for 2 - 3 months and should be terminated only after fungal culture results are negative3