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.
M-mode (left image) and B-mode (right image). On the right image, the M-mode shooting line is in the middle of the picture (circle and yellow line). Above the pleural line (yellow arrows), there are several horizontal lines. A sandy pattern below the pleural line is known as the seashore sign, which is generated by lung sliding. This confirms that the lung is ventilated.
