What rash is that?

This 11-year-old boy is one of several members of the same family who presented with these lesions.

The treating doctor reports all were afebrile and appeared otherwise well.

Hint: the family owned a cat.

What is your diagnosis?

 

Check answer below image.

Answer: The annular scaling plaques seen on this patient’s chest are suggestive of a cutaneous dermatophyte infection known as tinea corporis or ringworm.

Transmission can occur via fomites, or direct skin exposure with an infected animal or human. The condition typically develops one to three weeks after exposure and can be treated with topical antifungals until the lesions resolve. 

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