Basal cell carcinoma
With modern treatment, basal cell carcinoma has a successful cure rate of over 90%, even if multiple treatment modalities must be applied. The problem, however is that new lesions in the skin have a tendency to develop over time requiring repeated treatments. This applies especially to hereditary forms and immunosuppressed patients.
Squamous cell carcinoma
For squamous cell carcinoma, the prognosis is also good for localized disease, but the risk for lymphatic and hematogenous spreading is higher. With hematogenic spreading, the disease is in principle incurable.
Five-year relative survival for patients with nonmelonoma skin cancer, in percent, during the diagnosis period 1974–2013.
Source: Cancer Registry of Norway