Mayo Clinic Care Network Content
Definitions

Chronic lymphocytic leukemia


Overview

B-cell chronic lymphocytic leukemia (CLL) develops from a type of white blood cell called B cells. It progresses slowly, usually affecting older adults.

Symptoms

CLL may not cause any symptoms for years. When symptoms do occur, they may include swollen lymph nodes, fatigue, and easy bruising

Treatments

Treatment isn't always initially necessary, but may include medications, chemotherapy, and stem cell transplants.