Which description best matches the ringworm lesion described in the child?

• A. Linear stretch of red scales
• B. Circular patch with central clearing and a scaly border
• C. Pustular blisters in a ring
• D. Diffuse patchy redness without scale

Answer: (B)

Ringworm on the skin typically presents as an annular, or ring-shaped, patch with central clearing and a scaly, sometimes slightly raised border. The fungus grows outward from the center, so the edge remains active and scaly while the center heals, creating that clear center. Among the descriptions, the circular patch with central clearing and a scaly border matches this pattern exactly. The other options describe patterns that aren’t characteristic of a fungal circular lesion: linear red scales suggest a different form of dermatitis, pustular rings are not the classic ringworm pattern, and diffuse redness without scale lacks the defining border and clearing seen with tinea.