Galleri (multi-cancer early detection)

What it isA blood test that analyzes methylation patterns on cell-free DNA fragments to look for signals from over 50 cancer types, including many without traditional screening tests.

DoesCasts a wide net for early cancer signal across multiple organ systems.

GoodNo signal detected provides reassurance, though it does not substitute for routine screening tests.

BadA positive cancer signal triggers a directed diagnostic workup. False positives and false negatives both occur, particularly for early-stage cancers.