There is also compression of the right main stem bronchus
with complete right lung collapse.
This patient's aortic arch exhibited mirror image branching  where the arch passed over the right main stem bronchus
and continued on as the descending aorta.
It also showed a 3 cm lung mass posterior to the left main stem bronchus
Flexible bronchoscopy demonstrated tenacious, thick, and sticky whitish secretions blocking the left stem bronchus
Foreign bodies in trachea or main stem bronchus
are retrievable and can be removed from most of patients with rigid hollow bronchoscope or flexible endoscope (Jones, 1984).
We should remember that while removing the impacted foreign body, it may obstruct at the main stem bronchus
and cause accidental migration into contralateral lung due to inefficient grasps.
There was severe stenosis of the right bronchus intermedius and proximal left main stem bronchus
and a hypoplastic right lung (Fig.
(4,10) This finding is secondary to the larger diameter and greater air flow of the right main stem bronchus
, as well as its more vertical nature.
A metallic Wallstent (Schneider, Minneapolis, MN) was used at this second intervention in the same sites, with additional stenting in the right main stem bronchus
, bronchus intermedius and right lower lobe bronchus.
In the first report (4), a Fogarty catheter was used to extract the marble, which rolled over to obstruct the opposite main stem bronchus
. The Fogarty catheter was replaced into the involved bronchus and the foreign body was then expelled into the oral cavity.
The general design includes one lumen ending at the tip of the tube which is angled to one side to aid intubation of one main stem bronchus
with its own cuff.
The cut surface showed a 5-cm tumor similar in appearance to the initial tumor with invasion of the main stem bronchus
, pulmonary veins, and the wall of the right atrium.