A Case of Milia Occurring on Lichen Striatus of the Face / 대한피부과학회지

ABSTRACT

A healthy 4-year-old boy presented with a linear erythematous eruption, along with some pearly papules on the right cheek. The distribution of the lesions corresponded to that of Blaschko?s lines. Histopathological examination showed necrotic keratinocytes and vacuolar changes on the basal layer in the epidermis, and a superficial and deep perivascular, perieccrine, and perifollicular lymphocytic infiltrate in the dermis. In addition, a small keratin-filled cyst was observed in the upper dermis. These findings were consistent with a diagnosis of milium developing on lichen striatus. We applied 0.03% topical tacrolimus ointment twice daily. On follow-up 12 months later, the linear erythematous eruption cleared, but the pearly papules persisted.