Dermatofibrosarcoma Protuberans (DSFP) is a rare skin cancer that can spread if not treated.
The exact cause of DSFP is still unknown, though occurrences in skin that has been badly injured, such as a burn, seem to be more common than on otherwise healthy skin. Anyone can get DSFP at any age, though most cases are diagnosed between age 20 and 50.
DSFP begins in the dermis, the middle layer of the skin and tends to grow slowly. It may first appear as a lump under the skin and turn into a raised, pigmented patch on the surface. In children, you may think it is a birthmark.
This type of skin cancer is rare and tends to grow slowly. It has a high survival rate and rarely spreads when treated. Without treatment, DFSP can grow into the fat, muscle tissue and even the bones making treatment very difficult.
Most treatment plans include surgery to remove the cancer. If DFSP has progressed deeper into the muscle or bone, other treatment may be necessary. A treatment plan for DFSP usually includes either excision or Mohs Surgery.