PAEA Surgery End Of Rotation (EOR) Practice Exam

The classification of liver tumors is essential in understanding their behavior and treatment options. It is noted that a significant majority of liver tumors are indeed malignant, with approximately 90-95% classified as such. The most common type of malignant liver tumor is hepatocellular carcinoma (HCC), which is primarily linked to chronic liver diseases, such as cirrhosis and hepatitis B or C infections. This high percentage reflects the prevalence of serious underlying liver conditions that contribute to cancer development. While there are benign liver tumors, such as hemangiomas and adenomas, they represent a much smaller fraction of liver tumors overall. Consequently, the statement that 95% of liver tumors are malignant aligns with epidemiological data regarding the incidence and classification of liver tumors.