Within five years of diagnosis, 92 percent of patients die from pancreatic cancer, with 75 percent dying within one year, according to Pancreatic Cancer Canada. Liver cancer has an overall five-year survival rate of 17 percent, says the American Society of Clinical Oncology.
As of 2015, pancreatic cancer has the highest mortality rate of all major cancers, reports Pancreatic Cancer Canada. Pancreatic cancer often presents with very subtle symptoms. As a result, the disease has typically already spread by the time of diagnosis, contributing to its poor prognosis, claims WebMD. Liver cancer has a propensity to metastasize to nearby gastrointestinal organs as well as lymph nodes and the gallbladder, says the Canadian Cancer Society.