Upper Lobe or Upper Division Bronchus.

From the anatomic perspective, a normal LUL bronchus divides into an upper division bronchus and lingular bronchus. 2 Lung parenchyma supplied by the lobar bronchus has its complete overlying pleura. Is the LUL bronchus in Figure 5B of the article by Mehta et al 1 a true lobar bronchus or, in fact, the upper division of the LUL bronchus— a sublobar bronchus? Th e discrimination is important because accurate and precise airway terminology is essential for communication between bronchoscopists.