Medically reviewed by Scott Sundick, MD The inferior vena cava (also known as IVC or the posterior vena cava) is a large vein ...

Noncontrast CT of the abdomen and pelvis revealed a ... a 2.2 × 1.0 cm renal vein tumor thrombus extending into the inferior vena cava (Figure 1b) and multiple bilateral pulmonary nodules up ...