Strictly speaking, dermatofibrosarcoma protuberans is not cancer, but sarcoma, because cancer comes from epithelial tissue and DFSP comes from interstitial tissue.

But both sarcoma and cancer are at risk of recurrence and metastasis.

But dermatofibrosarcoma protuberans belongs to low-grade malignant sarcoma (the mildest cancer), so don't worry too much. Many places classify DFSP as a kind of skin cancer)-If there is no standardized treatment, the probability of recurrence is very high, with 20-70% reports. The probability of metastasis is very small, which is more common in patients with aggravated malignant degree after repeated attacks (fibrosarcoma type DFSP), 3-5%, more common in blood phase metastasis, more common in the lungs.

DFSP is usually insensitive to radiotherapy and chemotherapy, and the recommended treatment is extensive surgical resection. If the site is limited and needs to be considered aesthetically, Mohs can be used (it has been reported abroad that Mohs can reduce the recurrence rate to 6- 1 1%).

If it is not suitable for surgery, metastatic or recurrent cases, Gleevec can be used for treatment, the effect is very obvious, but the cost is very high, 400mg/ day.

As for the hospital, if it is only the first resection, you only need to go to a third-class first-class hospital for standardized and extensive resection, and the margin is 3-5cm away from the tumor. There is no tumor surgery. During the operation, the pathology of quick freezing margin was used to ensure no tumor residue.

Director Xiao of Oncology Department of Beijing 304 Hospital