We abide by a rule of the UICC system of cutaneous malignant melanoma and non-melanoma skin cancer. Assignment of pT stage for melanoma requires accurate measurement of pathological findings. On the other hand, T classification of SCC is decided only by measurement of size. We introduced the UICC TNM staging systems and compared the 5-year survival rate of our cases with the statistical data of the Japanese Society for Skin Cancer.