FIGURE 3.
(A) Chest CT image of a 60-year-old man shows bronchial thickening in the bilateral hilar region at diagnosis. (B) Chest CT image of the same man shows obvious improvement after 3 mo treatment. CT = computed tomography.
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.