What key visual feature distinguishes tinea corporis, or ringworm, from conditions like a simple patch of eczema?
Answer
Central clearing
Tinea corporis, commonly known as ringworm, presents a characteristic appearance, typically as a circular or oval rash. The distinguishing factor that separates it from other inflammatory conditions like eczema is the morphology of the lesion itself: it possesses a distinct, often raised, scaly border coupled with a clearer area in the center. This central clearing effect is a hallmark sign of dermatophyte activity in this specific presentation.
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