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September 1985

Firm Linear Plaque on the Lip of a Child

Author Affiliations

Northwestern University Medical School, Chicago

Arch Dermatol. 1985;121(9):1201-1202. doi:10.1001/archderm.1985.01660090115029

REPORT OF A CASE  A 3-year-old girl was referred to the Dermatology Service at Children's Memorial Hospital, Chicago, because of an asymptomatic linear plaque on her lower lip that had been present since birth. The lesion had not changed significantly and was of no functional importance; however, it had become a cosmetic concern. The patient was otherwise in excellent health and developing normally.Physical examination revealed an irregular linear plaque consisting of smooth, pink, firm, confluent papules distributed along the lower lip and obscuring the vermilion border in some areas (Fig 1). Two tiny (<1-mm) symmetric papules were present on the upper lip. The tongue, gums, and mucous membranes were normal. There were no other cutaneous lesions.Excisional biopsy was performed in the Plastic Surgery Department. The histologic specimen showed hyperplasia of the epidermis, with irregularly arranged dermal nests of large polygonal cells containing small nuclei and coarsely granular eosinophilic

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