Liver cancer occurs when the cells lining the organ turn cancerous over a prolonged period. This cancer originates in the liver. When cancer spreads from another organ or part of the body, the medical condition is known as secondary liver cancer or metastatic liver cancer. Diagnosis at the early stages of the medical condition followed by surgical intervention is the only way to quick recovery. Treating liver cancer may be a long-term process. You will have to involve a follow-up treatment for liver cancer for many years in such a case.