Blood tests that detect early cancer are coming to market. Could they lead to earlier diagnosis and treatment?

Medically reviewed by Lindsay Cook, PharmD Key Takeaways HER2-positive breast cancers have more HER2 receptors and can grow and spread faster than HER2-negative cancers.HER2 status should be tested ...

Circulating tumor cells (CTCs) refer to cancer cells that have broken off from a primary tumor. These tumor cells can travel through the blood in the circulatory system and lodge themselves in other ...