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Technology Detects Cancer in Blood

Research Is Continuing Into Circulating Tumor Cells, Which Can Provide Clues About the Spread of the Disease

As doctors and scientists around the world continue to seek more effective ways to fight cancer, some researchers believe that clues are found in circulating tumor cells—stodgy cancer cells that tend to spill out of the malignant tumor and flow into the bloodstream.

A cancer, or a "malignant neoplasm" in medical terminology, is a disease in which cells grow uncontrollably and form tumors. The disease spreads to more distant...

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