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Dermatology clinic

A girl with itchy plaques on the arms and legs

Victoria Harris, Gayle Fischer

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Abstract

Test your diagnostic skills in our regular dermatology quiz. What is the cause of these itchy lesions?

Article Extract

Case presentation

A 3-year-old girl presents with crops of pruritic erythematous raised plaques and excoriated vesicles on her forearms and lower limbs (Figures 1a and b). There are associated excoriations and crusting around the plaques on a background of erythema. The girl’s mother describes a similar presentation the previous summer following a mosquito bite.

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