The objective is to conduct treatment in a minimally invasive manner (using the endoscope) and without the requirement for repeated doses of chemotherapy. The single dose of the drug used (15,000 IU/m2 x Body Surface Area of bleomycin) has been well tolerated in all patients treated previously with this approach to skin based cancers (in excess of 300 treatments since 2003 in our hospital). Therefore, it is anticipated that patients are unlikely to suffer side effects from the low concentration of drug used.