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Acrodermatitis chronica atrophicans
Keywords: ACA, Borrelia afzelii, Acrodermatitis chronica atrophicans, Atrophy, Bacterium, Chronic borrelial infection, Female, Knee, Leg, Swelling, Tick bite, Unilateral ill-defined reddish/violet discolouration
Acrodermatitis chronica atrophicans (ACA) is the most common skin manifestation of the late stage of Lyme disease.
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Source: dermnetnz.org