If you have tumors like skin lesions or lymph node lesions that are located close to the skin, and you plan to have cancer treatment, a sample of your tumor will be collected before you receive your cancer treatment. It will also be collected up to 2 other times (for this study's research), while you are on treatment. A total number of biopsy will not exceed 6 per year, and will not exceed more than 10 over 5 year period. The biopsies will be performed by using a small needle (with or without an ultrasound imaging machine), a punch knife, or a small surgery. If you have tumors located close to the skin but do not plan to receive cancer treatment, you will be asked to have a tumor biopsy up to 2 times per year for up to 5 years.