Thoracic aorta aneurysm tracheal compression and anatomical variant of the right subclavian artery: A case report.

Tracheo-bronchial compression is a complication of vascular congenital and acquired anomalies, usually associated with double aortic arch, aberrant subclavian artery, pulmonary artery sling, Kommerell's diverticulum, and with aneurysms of the aortic arch and thoracic aorta. In this report we present a case of a 75-year-old male with incidental diagnosis of tracheal compression by a thoracic aorta aneurysm combined with anatomical variant of the right subclavian artery, that came up to our attention because of the onset of a subarachnoid hemorrhage (SAH) caused by a bilobar shaped anterior cerebral artery aneurysm rupture.