[Atypical keloids with an unusual myofibroblastic differentiation in a patient with acne vulgaris].

We present the case of a patient with a discreet acne and multiple keloids in the area of the upper trunk, histologically showing an unusual myofibroblastic differentiation. So far, the clinical course shows a poor response to the treatment, including cryotherapy, intralesional corticosteroid injections, occlusive silicone dressings and dye laser.