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common

Granuloma annulare

Granuloma annulare (GA) is a rare, sometimes skin condition which presents as reddish bumps on the skin arranged in a circle or ring. It can initially occur at any age, though two-thirds of patients are under 30 years old, and it is seen most often in children and young adults. Females are two times as likely to have it as males.

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Plain-language summary adapted from Wikipedia. Not medical advice.