The liver is one of the most common sites with tumour involvement, including both primary and metastatic disease. Gastrointestinal tumours, breast, lung and melanoma are the most common primary sites for hepatic metastases. Hepatocellular carcinoma(HCC) is the sixth most common cancer worldwide, with over 600,000 new cases diagnosed per year. It is the third most common cause of cancer related death.Although, predominately a disease in Asia and sub-Saharan Africa, the incidence of HCC is increasing in North America. The use of radiation in unresectable hepatocellular carcinomas, as well as hepatic metastases, for palliation is uncommon in clinical practice.