Lichen striatus: clinical and epidemiological review of 23 cases
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Lichen striatus (LS) is an asymptomatic self-limited skin disease of unknown etiology which was first described by Senear and Caro in 1941 . Although LS is a frequent dermatosis among children, especially in girls between 5 and 15 years of age, there are few reviews in the literature.
LS is characterized by erythematous or brownish papules with a flattened surface that are frequently scaly in appearance and occasionally display vesicles. The lesions are usually solitary and unilateral and have a linear distribution following Blaschko’s lines, usually on the extremities. Atypical forms with multiple and bilateral lesions have been described.
Onset is usually sudden, with the disease progressing over days or weeks and slowly decreasing spontaneously until the papules resolve within 6–24 months, leaving a transitory residual hypopigmentation, especially in patients with a dark complexion. The inflammatory phase is not always detected, and hypopigmentation may be the first...