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.
Gray scale image of a benign nodule in a patient with thyrotoxicosis (within calipers). This nodule has a regular margin (0) and is heterogeneous (1) with no calcification (0). Color Doppler revealed normal blood flow. Index score is 1. Final diagnosis was colloid goiter.
