Is this papule on a girl's chin a wart?

Dermclinic
A Photo Quiz to Hone Dermatologic Skills

Case 2:
The mother of a 6-year-old girl is concerned about the enlarging bump on her daughter’s chin. The slightly itchy lesion first appeared as a “pimple” 1 week earlier.

Do you recognize this lesion?

A. Wart.
B. Acne vulgaris.
C. Granuloma annulare.
D. Ringworm.
E. Staphylococcal folliculitis.

(Answer on next page.)

Dermclinic—Answer

Case 2: Ringworm

A potassium hydroxide evaluation confirmed the suspected diagnosis of ringworm, D. Further questioning revealed that a new pet had recently come into the household; the kitten was the suspected source of the dermatophyte. A short course of an antifungal cream was effective.

Warts can appear suddenly, but they lack scale and are usually asymptomatic. Acne rarely occurs in a 6-year-old child and does not have this appearance. Typically, granuloma annulare is asymptomatic and does not affect the face. Staphylococcal infections generally are tender.  ■