NHL is a heterogeneous group of blood malignancies that originate from the lymphatic system, an essential component of the body's immune defenses...
The cancer usually arises primarily in the lymph nodes but may also spring from other parts...
The behavior and treatment of NHL depend on the specific histologic type and stage...
Thanks to these advances, the prognosis and overall survival seen in NHL patients is significantly better today compared to the past.
Non-Hodgkin lymphoma contains no less than 70 subtypes, which are classified by practitioners based on the kind of lymphocyte that is affected.
- B-cell lymphoma: These are cancers arising in B cells, which make antibodies for fighting infection-causing agents. About 85 percent of NHL diagnoses fall into this category.
- T-cell lymphoma: These arise from T cells that target germs and foreign invaders to help B cells make antibodies.
Providers classify B-cell and T-cell lymphomas as fast-growing or slow-growing. Aggressive forms require more intensive treatment.
Many risk factors include non-Hodgkin lymphoma...
- The age is more than 60 (the risk in NHL increases with advancing years)
- Male
- White
- Immune system deficiencies. HIV infection weakens the immune system and may increase your risk of developing NHL...
- Autoimmune diseases. Inflammatory bowel disease (IBD), rheumatoid arthritis, psoriasis...
- Infection. Many bacterial and viral infections such as H. pylori, HTLV-I, hepatitis C, and Epstein-Barr virus are linked to NHL.
- Pesticides exposure. Some research indicated that people exposed to weed killers and insecticides have a slightly higher risk of NHL.
- Family history. You may be at greater risk if you have a parent, sibling, or child with lymphoma or another blood cancer.