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.
The posterior part of the nasal septum was removed, and while carefully visualizing the left sphenoid sinus, the right sphenoid sinus was treated. The prominence of the internal carotid artery was identified posteriorly to the left sphenoid sinus, and this was established as the posterior limit.
R-SS: right sphenoid sinus; L-SS: left sphenoid sinus; NS: nasal septum
