Azygoesophageal branch of inferior phrenic artery
Azygoesophageal branch of IPA runs along azygoesophageal recess and reaches posterior lung base making typical U shape.
Azygoesophageal branch of IPA almost always has a systemic-to-pulmonary shunt and is shown at cone-beam CT in about one-half of patients
This branch seems to suppply the pleura of the lung base along the azygoesophageal recess
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