Superior pulmonary sulcus
The superior pulmonary sulcus (or just the superior sulcus) refers to an apical pleuro-pulmonary groove formed by the subclavian artery as it curves in front of the pleura runs upward and lateral immediately below the apex. It is a typical location for Pancoast tumours (also know as superior sulcus tumours) that arise from pulmonary tissue.
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bronchopulmonary segmental anatomy (Boyden Classification)
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