title: Surveillance, diagnosis, treatment, and outcome of liver cancer in Japan.
abstract: BACKGROUND
  Hepatocellular carcinoma (HCC) is the fifth most common type of cancer and the third leading cause of cancer-related death worldwide. HCC is most common in Asia, but its prevalence is rapidly increasing in Western countries; consequently, HCC is a global medical issue that urgently needs to be addressed. Japan is the only developed country that has experienced both hepatitis B-related and hepatitis C-related HCC and has a long history of innovation when it comes to new diagnostic and therapeutic modalities, such as computed tomography angiography, anatomical resection, ablation, and transarterial chemoembolization. Among these innovations, a nationwide surveillance program was well established by the 1980s, and such a long-term national program does not exist anywhere else in the world.
  
  
  CONCLUSIONS
  More than 60% of the initially detected HCCs in Japan are Barcelona Clinic Liver Cancer stage 0 or A, which can undergo curative therapies such as resection, ablation, or transplantation. The recent 5-year survival rate of HCC patients in Japan was 43% and the median survival time was 50 months. In addition, both incidence and mortality rates are drastically declining as a result of the successful surveillance program, careful diagnostic flow, and extensive repeated treatments.
  
  
  CONCLUSIONS
  Japan's successful model in the surveillance, diagnosis, and treatment of HCC should be adopted as widely as possible to improve the survival of HCC patients worldwide.
authors.affiliation: Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka, Japan.
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Kudo
keywords: Diagnosis; Hepatocellular carcinoma; Prognosis; Surveillance/screening; Treatment algorithm