Superior phrenic vein

{{Infobox vein

| Name = Superior phrenic vein

| Latin = vena phrenica superior

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| DrainsFrom = Thoracic diaphragm

| Source =

| DrainsTo = Azygos vein
hemiazygos vein

| Artery = Superior phrenic artery

}}

The superior phrenic vein, i.e., the vein accompanying the pericardiacophrenic artery, usually opens into the azygos vein.