inferior phrenic vein inferior phrenic vein the inferior phrenic veins drain the diaphragm and follow the course of the inferior phrenic arteries; the right ends in the inferior vena cava; the left is often represented by two branches, one of which ends in the left renal or suprarenal vein, while the other passes in front of the esophageal hiatus in the diaphragm and opens into the inferior vena cava. inferior phrenic veinthe venæ cavæ and azygos veins, with their tributaries.detailsdrains fromthoracic diaphragmdrains toinferior vena cava, othersarteryinferior phrenic arteriesidentifierslatinvenae phrenicae inferioresta98a12.3.09.002ta24992fma68068anatomical terminology