Some critical areas in face, if treated by  surgery, which is  gold standard for removable skin cancers like  basal cell cancer may result in scar formation.
Italian scientists have developed a paste of  rhenium-188, a radioactive isotope to cure the skin cancers especially in face, where surgery can give rise to ugly scar.

Read more; http://clinicianonnet.blogspot.com/2012/01/radiation-dose-in-from-of-paste-fo…