LICHEN STRIATUS - A RARE BILATERAL VARIAN T

A two-and-a-half-year-old developed a bilateral linear eruption that b ecame hypopigmented before clearing spontaneously. Lichen striatus is common in pediatric patients but is usually unilateral. The eruption d evelops along the embryologic skin lines described by Blashko. The cau se is unclear, but antigenic mosaicism, abnormal skin cell migration, and a viral trigger have been hypothesized as possible pathophysiologi c factors. The differential diagnoses include linear papular eruptions , other variants of lichen, and incontinentia pigmenti achromians.