[Prurigo pigmentosa].

Prurigo pigmentosa is a sudden onset recurrent papulopruriginous dermatosis characterized by reticulated pigmentation of the trunk. Histologically, there is a non-specific lichenoid tissue reaction. Several treatment regimens have been successful, including: dapsone, potassium iodide, cyclines. We report the seventh non-Japanese case observed in a 21-year-old native of Marrocco for whom treatment with cycline was unsuccessful.