It is best to read this information with our general information about non-Hodgkin lymphoma (NHL). If you have any more questions, you can ask your doctor or nurse at the hospital where you are having treatment.
SMZL is a slow-growing type of NHL. It develops when B-cells (also called B-lymphocytes) become abnormal. B-cells are white blood cells that fight infection.
The abnormal B-cells (lymphoma cells) build up in the spleen, bone marrow and blood.
The spleen is an organ in the upper part of the abdomen, on the left-hand side. It is normally about the size of a clenched fist. It helps us to fight infection and removes old and damaged blood cells from the bloodstream.
The bone marrow is in the middle of bones. It is where blood cells are made.