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July 1979

Pityriasis Rosea in Infancy

Author Affiliations

From the Department of Dermatology, Johns Hopkins Hospital, Baltimore (Dr Hendricks) and the Department of Pediatrics, University of Virginia Medical Center, Charlottesville (Dr Lohr).

Arch Dermatol. 1979;115(7):896-897. doi:10.1001/archderm.1979.04010070062030

Pityriasis rosea is an acute, self-limited skin disease of unknown cause, characterized by oval, papulosquamous lesions that are distributed on the trunk and extremities. The disease is worldwide in distribution and accounts for 1% to 2% of all patients attending dermatologic clinics.1 Most cases occur in young adulthood, between the ages of 10 and 35 years, in an equal sex distribution.1,2

The occurrence of pityriasis rosea in infants under 2 years of age is uncommon, with fewer than 20 cases mentioned in the medical literature. Five of these cases are carefully described (Table). The youngest reported patient was 3 months old.3 We report a typical case of pityriasis rosea in a 16-month-old infant, and review other cases in infancy.

Report of a Case  A 16-month-old black female infant had a scaly red patch on the upper part of her chest that developed in November 1974. The lesion