FIG. 1. Circulating tumor cells (CTCs) and cell-free circulating tumor (ctDNA) originated from the primary tumor or metastatic lesion circulates in the blood. Reprinted with permission from Sysmex Inostics Corp.
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.