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.
EUA. Direct hypopharyngoscopy, white arrow shows the bulge of the posterior hypopharyngeal wall into left piriform sinus. The long black arrow shows the posterior pharyngeal wall while the head of an arrow demonstrates the epiglottis. The short black arrow shows small part of the glottis marginally visible through the direct endoscope.
