Punctate stenosis of the left source bronchus.
Sequela of bronchial tuberculosis.
View from the intrathoracic trachea.
These source bronchi are “reunited”.
Note that the separation angle has been reduced, giving a singular aspect of parallelism.
The posterior tracheal wall is also modified.
The changes are due to a thoracoplasty of six ribs, which has included the first, as a complementary surgical treatment for multidrug-resistant pulmonary tuberculosis.