Did a trip to the zoo cause this little girl’s rash? Time for a Dx Quiz!

A one-year-old girl was brought to the doctor by her father for a rash that developed on her trunk three days prior. The patient’s father mentioned that his daughter frequently scratched the lesions and that he had taken his daughter on a trip to the local zoo on a hot and humid day, prior to lesion presentation. On examination, widespread tiny, smooth papules, not arising within hair follicles, were seen on the chest and arms. What’s the diagnosis?

A)     Atopic dermatitis

B)     Keratosis pilaris

C)     Miliaria rubra

D)     Varicella


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