Las lesiones hipopigmentadas de la piel son motivo de consulta frecuente en la infancia. Diversas patologias dermatologicas se manifiestan por maculas de coloracion blanquecina, entre estas se encuentra el liquen estriado o dermatosis inflamatoria adquirida, de curso benigno, de etiologia desconocida y curso autolimitado. La imagen histologica se considera poco especifica, es necesario realizar abordaje clinico e histologico. Se presenta caso de un paciente escolar, femenino, de nueve anos de edad que presento lesiones papulosas, blanquecinas en forma de placas lineales, pruriginosas, localizadas en hemitorax y en el antebrazo izquierdo. Rev.cienc.biomed. 2013;4(2):335-338 PALABRAS CLAVE Liquen estriado, Lineas de Blaschko, Dermatosis; Dermatologia. SUMMARY Hypopigmented skin lesions are frequent motive for consultation in the childhood. Several dermatological diseases are expressed by macules of whitish coloration and the lichen striatus is one of them; it is an autolimited, inflammatory and acquired dermatosis that has benign course and unknown etiology. The histological image is considered few specific; it is necessary to carry out clinical and histological approach. A case of a 9-year-old schoolgirl who presented papulous and pruriginous lesions with whitish coloration in the shape of linear plaques, located in the left hemithorax and left forearm is presented. Rev.cienc.biomed. 2013;4(2):335-338 KEYWORD Striatus lichen; Blaschko’s lines; Dermatosis; dermatology