Observation: Pityriasis lichenoides (PL) is a benign lymphocytic infiltrative skin disease that presents as papulonecrotic, vesicular or papulosquamos lesions. Etiology of the disease is still unclear. It usually occures in children and lesions are usually located on the trunk and extremities. A few cases have been reported about localised eruption. We present a case, 12 years old girl who has localised eruption on the right thigh for 2 years .