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 ...

Hodgkin’s lymphoma is a type of cancer that starts growing in the white blood cells of the immune system. There are two different types and five subtypes, each with different characteristics.

Medically reviewed by Archana Sharma, DO Key Takeaways Leukemia starts in the bone marrow and spreads through the ...

Non-Hodgkin’s lymphoma (NHL) is a group of over 60 subtypes of cancer that originate in the lymphocytes, which are white blood cells within the lymphatic system. NHL subtypes are categorized based on ...