About the Episode
CTCs are cells shed from the primary tumor into the bloodstream — the carriers of metastasis; only a few are found per mL of blood. This episode covers CTC biology, what their counts say about disease course and treatment response, and how CellsWay captures these rare cells.
We emphasize that the test is for monitoring in diagnosed patients and is not used for screening.
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Rx-only — prescription screening test. Galleri® is not a diagnostic test. A positive result does not mean a cancer diagnosis; a negative result does not rule out cancer. The test does not replace the routine cancer screenings recommended by your physician. Galleri® does not detect all cancers.