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.
Prevertebral muscular infiltration. This T1-weighted scan demonstrates a left tonsillar carcinoma, which causes effacement of the fat of the retropharyngeal space on the left. Compare the left side with the right side. The irregular margin of the muscle belies the infiltration of the longus colli in this patient with fixation of tumor.
