A patient with a family history of liver cancer is at risk for which condition?

The correct answer is determined by the connection between family history and the likelihood of developing specific health conditions. In this instance, individuals with a family history of liver cancer are at an increased risk for Hepatitis B due to the virus's well-documented association with liver disease and hepatocellular carcinoma, the most common type of liver cancer. Chronic Hepatitis B infection can lead to liver inflammation, cirrhosis, and ultimately increase the risk of developing liver cancer. Furthermore, Hepatitis B has a significant genetic component, with family history playing a role in susceptibility to viral infections leading to cancer.

The other conditions listed do not have a strong correlation with liver cancer risk. Malaria is a mosquito-borne illness primarily associated with red blood cell destruction and does not have a direct link to liver cancer. Tularemia is an infectious disease from the bacterium Francisella tularensis, typically not associated with liver pathologies or cancer. Tyrosinemia is a genetic disorder affecting the metabolism of the amino acid tyrosine and can lead to liver complications; however, it does not have the same established direct correlation to cancer risk as Hepatitis B. Thus, Hepatitis B emerges as the primary concern for a patient with a family history of liver