Lichen Striatus: Review article

Introduction: The lichen striatus is a rare disease of the skin. LS mainly affects children. LS is a benign self-limited, localized blaschkolinear inflammatory disorder of unknown etiology.Methods: A literature review was performed on any aspects of LS in children using pubmed and google scholar sing following terms: lichenstriatus, nail lichen striatus, facial Lichen Striatus, lichenoidplaque, dermatology. Articles not related to children population were excluded.Findings: In epidemiological review most of cases in children usually were between the age of 3 and 15 years. Females are affected more than males. The etiology of LS is still unknown.in one article there is an increasing incidence in spring and summer. seasonal variation with a peak incidence of lichen striatus further suggests a viral origin. The histologic pattern of LS is well defined. A perivascular inflammatory is seen. A lichenoid pattern with inflammatory infiltrate near the dermoepidermal junction may be present. clinical and histologic findings overlap with other cutaneous disorder that follows the lines of blaschko. Lesions are usually unilateral and characteristically appears as shiny ,flattoped erythematous papules. Lesion occur more frequently on legs, although any part of the body may be affected. Treatment or no treatments was not significantly correlated with duration of disease.Conclusion: LS mainly affects children. LS is a benign self-limited, localized blaschkolinear inflammatory disorder of unknown etiology. The onset of lesions is sudden and progresses to the full clinical aspect in days or weeks. LS is typically asymptomatic, but intense pruritus can occur. There isn’t any specific treatment for LS Its benign, Treatment or no treatments was not significantly correlated with duration of disease, self-limited course is marked by spontaneously involution in 6–12 months, with no scar formation.

Keywords:

lichen Striatus , Children , Erythematous Papules , Blaschko line