Inferior Vena Cava Tumor Thrombus Secondary to Mucinous Adenocarcinoma of the Stomach

The expansion of a tumor into a blood vessel is known as a tumor thrombus. Tumor thrombi are caused by many types of cancers and commonly confer a poor prognosis. Tumor thrombus secondary to non-hepatic gastrointestinal cancers are rare and when reported is typically seen in the portal vein rather than the inferior vena cava (IVC). Presentation specifically of gastric malignancies is usually non-specific and late in the disease course, thus limiting treatment options. In this case we present a patient with an inferior vena cava tumor thrombus secondary to mucinous adenocarcinoma of the stomach.