PERSISTENT ANNULAR ERYTHEMA OF INFANCY

Annular erythema of infancy is an uncommon, nonpruritic, figurate eryt hema that begins in the first year of life. Biopsy specimens reveal a perivascular and interstitial lymphocytic infiltrate with numerous eos inophils. The cause of the disorder is unknown, but a hypersensitivity response to unrecognized antigens is suspected. The disorder is self- limited, but may last for many months. In our patient the eruption con tinued 19 months after its onset.