Dermatophytoses are superficial fungal infections that have different presentations and are named based on location.
Tinea corporis (ringworm) usually presents with lesions of varying sizes, degree of inflammation and depth of involvement found on the trunk, extremities or face excluding the beard area in men.
Tinea cruris (jock itch) are lesions found on the groin. It may affect the proximal medial thighs and extend to the buttocks and abdomen. The scrotum and penis tend to be unaffected.
The red scaling lesions with raised borders have pustules and vesicles at the active edge of infected area.
Tinea pedis (athlete's foot) are lesions found in the interdigital spaces (most common), sole of foot, and sides of feet.

Differential Diagnosis

  • Other conditions may have similar presentations to tinea infections & thus have to be excluded:
    • Tinea corporis: Drug eruptions, eczema, psoriasis, secondary syphilis, erythema multiforme
    • Tinea cruris: Seborrhea, psoriasis, contact dermatitis, candidal intertrigo
    • Tinea pedis: Eczema, psoriasis, dyshidrosis, contact or atopic dermatitis
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