What causes compression of the left main bronchus?

What causes compression of the left main bronchus?

Compression of left main bronchus and left pulmonary artery by thoracic aortic aneurysm.. Severe hypoxia due to ventilation-perfusion mismatch caused by aortic arch aneurysm.. We review the case report of a patient with compression of the left-main bronchus between an enlarged right pulmonary artery and a descending thoracic aortic aneurysm.

Is the left bronchus compressed between a descending aorta?

A thoracic computed tomography scan was obtained ( Fig 2) and showed that the left-main bronchus was indeed compressed between an aneurysm of the descending thoracic aorta (about 5×6.5 cm) and an enlarged right pulmonary artery (32 mm). The lung beyond the compression was filled with fluid and bronchiectatic.

Which is longer the left or right main bronchus?

Each main or primary bronchus enters the hilum of its lung and gives rise to secondary lobar bronchi, which further divide into tertiary segmental bronchi supplying the individual bronchopulmonary segments. The left main bronchus is longer, runs more horizontally and is about twice as long as the right main bronchus 1,2.

What causes compression of the left pulmonary artery?

Compression of left main bronchus and left pulmonary artery by thoracic aortic aneurysm.. Severe hypoxia due to ventilation-perfusion mismatch caused by aortic arch aneurysm.. In contrast, aneurysms of the descending thoracic aorta though common, only rarely cause tracheobronchial compression.

Compression of left main bronchus and left pulmonary artery by thoracic aortic aneurysm.. Severe hypoxia due to ventilation-perfusion mismatch caused by aortic arch aneurysm.. We review the case report of a patient with compression of the left-main bronchus between an enlarged right pulmonary artery and a descending thoracic aortic aneurysm.

A thoracic computed tomography scan was obtained ( Fig 2) and showed that the left-main bronchus was indeed compressed between an aneurysm of the descending thoracic aorta (about 5×6.5 cm) and an enlarged right pulmonary artery (32 mm). The lung beyond the compression was filled with fluid and bronchiectatic.

Compression of left main bronchus and left pulmonary artery by thoracic aortic aneurysm.. Severe hypoxia due to ventilation-perfusion mismatch caused by aortic arch aneurysm.. In contrast, aneurysms of the descending thoracic aorta though common, only rarely cause tracheobronchial compression.