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.
US‐guided mTHPC (Foscan)‐mediated interstitial PDT of tongue cancer. (A,B) Photographs of the patient undergoing US‐guided transcutaneous needle insertion into the tongue base and PDT to the tumor and surrounding lymph nodes. (C) US image showing needle (with light fiber tip) inserted in the tumor mass. (D) US image showing two metastatic cervical lymph nodes (black circles), into one of which the needle is being inserted. Adapted with permission from 59.
