Lichen striatus

Localized dermatosis of unknown origin, without generalisation or contagion risk and which is not associated with any other pathology. Eruption of rapid onset, with an extension over 2 or 3 weeks, made up of small papules of 1-2 mm, pink or pale brown, often itchy, occurring in a child aged from 2 to 15 years (average of 3 years). The topography is characteristic: unilateral eruption following the lines of Blaschko. Most often, the lesion is a monomelic single band, but can touch the whole tegument. Clinically, the involvement may be multiple, exceptionally bilateral. Nail involvement is possible and can precede skin involvement of several months or exceptionally stay isolated. Evolution into a transient and localized hypopigmentation is not uncommon, especially on a dark skin. There are also cases of children presenting with from the outset with a linear hypopigmentation alongside a line of Blaschko, without any notion of an initial eruption. Forms with hypopigmented macules from the outset could have a longer development (3 years on average) but evolve also to a complete spontaneous regression.



Anesthetic implications:

none


References:


Updated: September 2016