The Quiet Beginnings of Leukemia

Chronic lymphocytic leukemia (CLL) is the most common leukemia in adults, yet its earliest warning sign often hides in plain sight. Monoclonal B-cell lymphocytosis (MBL) affects millions of adults who may never know they carry this precursor to CLL. In this episode of Tomorrow's Cure, experts discuss how MBL was discovered, what it reveals about inherited risk, and why it matters for infections, second cancers and long-term health.