Dermatofibrosarcoma protuberans (DFSP) of the face. Photo by Tontonflingueur via Wikimedia Commons Dermatofibrosarcoma protuberans (DFSP) rarely affects the head and face—but when it does, new research suggests the cheek is the prime location. In what is described as the largest clinical cohort of facial DFSP to date, investigators at a single Chinese institution have mapped the complex distribution of the tumour across facial subunits, uncovering distinct anatomic and biolog