A 46-year-old patient comes to doctor's OPD with complains of chest pain and headache. His computed tomography (CT) scan reveals a tumor located just superior to the root of the right lung. Blood flow in which of the following veins is most likely blocked by this tumor?
High-Yield Explanation
The azygos vein arches over the root of the right lung and empties into the SVC. Other veins do not pass over the root of the right lung.