Figure 2From: Benign cervical multi-nodular goiter presenting with acute airway obstruction: a case report A computed tomography (CT) scan at the level of C7 showing the endotracheal tube flush with the wall of the trachea. The diameter of the tracheal lumen measured 7.5 mm with the endotracheal tube in situ maintaining its patency. Compare the tracheal diameter in this image with Figure 3.Back to article page