Race-related morphologic variations in hepatocellular carcinoma.

Area of Science:

• Hepatology
• Oncology
• Epidemiology

Background:

• Hepatocellular carcinoma (HCC) is prevalent in West Malaysia among Chinese and Senoi aboriginal populations.
• These groups exhibit distinct lifestyles, potentially influencing HCC development.
• Understanding these differences is crucial for targeted prevention and treatment strategies.

Purpose of the Study:

• To investigate the epidemiological and etiological differences in hepatocellular carcinoma (HCC) between the Chinese and Senoi populations in West Malaysia.
• To explore the association between hepatitis B virus (HBV) infection and HCC in these distinct racial groups.

Main Methods:

• Comparative analysis of HCC cases in Chinese and Senoi populations.
• Evaluation of clinical characteristics, including age, sex, and tumor presentation.
• Assessment of the correlation between hepatitis B virus (HBV) infection, chronic liver disease, and HCC development.

Main Results:

• Senoi exhibit earlier HCC onset and a higher male-to-female ratio compared to the Chinese.
• A stronger association between hepatitis B virus (HBV) infection, chronic active hepatitis, cirrhosis, and HCC is observed in the Senoi.
• Senoi HCC tumors typically present as multiple nodules, while Chinese tumors are often large and solitary.

Conclusions:

• Hepatitis B virus (HBV) is a significant oncogenic factor in both populations, but its role in HCC pathogenesis may differ.
• Distinct lifestyle factors and host-pathogen interactions likely contribute to the observed variations in HCC development between the Chinese and Senoi.
• Further research into the specific mechanisms of HCC development in these groups is warranted.