Blood test could replace biopsy for rare cancer treated by Keytruda - STAT

Blood test could replace biopsy for rare cancer treated by Keytruda - STAT

STAT Plus: Blood test could replace biopsy for rare cancer treated by Keytruda

By MATTHEW HERPER

SAURABH DAS/AP

Currently, identifying such cancers, called MSI-High, for “microsatellite instable-high,” requires a biopsy of a tumor that had been surgically removed.

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