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.
| Factors contributing to an increase in incidence | Factors contributing to a decrease in incidence |
|---|---|
| Heightened clinical sensitivity (including improved resolution of radiologic imaging) | Decreased use of ionizing radiation therapy |
| Environmental carcinogens | Nomenclature revision of noninvasive follicular-variant PTC to NIFTP |
| Concern for missing cancer | |
| Decreased threshold for diagnosing follicular-variant PTC by pathologists |
