Monoclonal B-cell lymphocytosis (MBL) is a condition in which a person has an excessive amount of abnormal B cells, which are a type of white blood cell known as lymphocytes. The number of abnormal B ...

Lymphocytes are a type of white blood cell produced in bone marrow that play a crucial role in your immune system. There are several types—called T cells, B cells, and natural killer (NK) cells—that ...

B-cell lymphoma is a cancer that forms in white blood cells called lymphocytes. These cells are made by your bone marrow and play an important role in your body's ability to fight infections. These ...

The production and function of blood cells are affected by blood cancer. Blood is produced in the bone marrow, where most of these cancers originate. Three types of blood cells that mature and develop ...

Chronic myeloid leukemia (CML) and chronic lymphocytic leukemia (CLL) are two different types of leukemia. Both conditions affect white blood cells. CML affects a type of white blood cell called ...

Intraepithelial lymphocytosis is an elevated white blood cell count in your gastrointestinal tract. It can be a sign of celiac disease, Crohn’s disease, or other gastrointestinal conditions. The ...

Hodgkin lymphoma, also called Hodgkin disease, is one of the two main kinds of lymphoma. (The other is non-Hodgkin lymphoma.) Most people with Hodgkin lymphoma have what is called the “classical” type ...

Hairy cell leukaemia can be kept under control for many years with treatment. You might hear hairy cell leukaemia called 'classic' or 'classical' hairy cell leukaemia. This is because there's another ...