Stenosis

 

Tracheal Stenosis: Before and After
In this video, trachea (windpipe) blockage causes shortness of breath until the narrowed segment is removed. You will see views of the trachea before and after surgical repair.
Post-Radiation Hypopharyngeal Stenosis
People with larynx or pharynx (voice box or throat) cancer often undergo radiation therapy as part of their treatment regimen. An uncommon complication is stenosis (narrowing, scarring) of the entrance to the upper esophagus at the junction of the throat and esophagus. This video provides an example of this disorder.

See also: stenosis in the encyclopedia.