A Review of Annular Eruptions in Children.

Abstract Annular, or ring-like, skin lesions are a distinctive cutaneous morphology. Dermatologic diagnosis is based on morphology and distribution, and therefore the generation of a differential diagnosis based on these criteria can lead to proper identification of an eruption. For many dermatologic conditions, considering a differential that includes infection, immune phenomenon, neoplastic process, physical etiology, and idiopathic process will assure that one thinks broadly and is likely to reveal the best diagnosis. Several of these categories are covered in this review of annular eruptions in children.