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.
a tympanogram of the left ear with effusion of tympanic membranes; b computed tomography (CT) image of the chest showing variable sized enhancing nodules in both lungs, with lower lung zone predominance; c positron-emission tomography/CT image
