Hepatocellular Carcinoma With Tumor Thrombus to the Hepatic Veins and the Right Atrium: A Case Report and Review Exploring Various Presentations and Treatment Options.

Hepatocellular carcinoma (HCC) is a leading cause of cancer and cancer-related deaths in the world. Some of the risk factors for the development of HCC include Hepatitis B virus (HBV), Hepatitis C virus (HCV), chronic alcoholism, autoimmune hepatitis, among others. One manifestation of HCC includes tumor thrombus (TT) to the right atrium (RA), which occurs in 0.