8-y/o girl, rash on left arm.

Figs 1 & 2: H&E. Fig 3. PAS

CLICK ON THE FIGS FOR ENLARGED VIEW

Diagnosis:
Dermatophytosis (Ringworm)
Comment:

Dermatophytosis

Classified on the basis of location
Tinea capitis, head
Keroin, folicles
Favus, chronic infection of scalp
Tinea faciei, facial
Tinea barbae, beard area
Tinea corporis, body
Tinea cruris, groin
Tinea pedis, feet
Onychomycosis, nail

Caused by dermatophytic fungi
Epidermophyton, Microsporum, and Trichophyton