Lomme Abstract Keratosis lichenoides chronica is a rare disorder. It consists of the progressive development of asymptomatic verrucosities on the limbs and the trunk, with a partially linear distribution. A diagnosis of keratosis lichenoides chronica was clinically and histologically evident. PUVA-therapy was started, with excellent results. Treatment is very difficult, and often disappointing.
Topical therapies are usually ineffective.
Only systemic retinoids and PUVA therapy produced some remissions. We report a new observation of KLC with a good response to PUVA-therapy which should be considered first line treatment for this rare condition. Face, palms and soles were spared as were mucous membranes, hair and nails. The asymptomatic dermatosis consisted of many firm red or brown papules, with a rough keratotic surface. The surrounding skin appeared normal.