Small lymphocytic lymphoma (SLL) is a cancer that affects a type of white blood cell called a "lymphocyte," which helps your body fight infection.
You may hear your doctor refer to SLL as a "non-Hodgkin's lymphoma," which is a group of cancers that affect lymphocytes.
When you have SLL, too many broken lymphocytes live and multiply in your lymph nodes. These are pea-sized organs in your neck, groin, armpits, and elsewhere, that are part of your immune system.
SLL tends to grow slowly. You may...