Figure 1.
Chest computed tomography (CT) scan: axial lung image showing huge reduction (arrow) of the trachea lumen (2 mm) due to mediastinal pathological tissue.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.