Non-Hodgkin Lymphoma (NHL)
Non-Hodgkin Lymphoma (NHL) is a type of cancer that originates in the lymphatic system, which is a part of the body’s immune system. It is called “non-Hodgkin” to differentiate it from Hodgkin lymphoma, another type of lymphatic system cancer with different characteristics. Hodgkin lymphoma can often be cured while prognosis of NHL depends on the specific type.
In NHL, there is an uncontrolled growth of abnormal lymphocytes, a type of white blood cell, which can occur in various parts of the lymphatic system, such as lymph nodes, bone marrow, spleen, and other organs. The disease can also spread to other parts of the body through the lymphatic vessels or bloodstream.
Causes
The exact cause of NHL is often unknown; however, it is believed that Non-Hodgkin lymphoma is caused by a change (mutation) in the DNA of lymphocytes. A mutation in DNA may lead to change in the instructions given to cells and these cells start multiplying uncontrollably. The abnormal lymphocytes start to accumulate in lymph nodes and spread within the body for example bone marrow, spleen, liver, skin, lungs, and stomach. Weakened immune system, certain infections, older age and family history are some of the risk factors that may increase the likelihood of developing NHL.
Symptoms
Some common symptoms of NHL: 5
- Swollen lymph nodes
- Fever and chills
- Fever and chills
- Unexplained weight loss
- Fatigue
- Abdominal pain or swelling
- Itchy skin
- Chest pain or difficulty breathing
Diagnosing NHL involves a combination of physical exams, imaging studies (such as CT scans and PET scans), biopsies of affected lymph nodes or organs, and various laboratory tests. Once diagnosed, the treatment approach depends on the type, stage, and overall health of the patient.
There are various subtypes of NHL, which can be classified based on the type of lymphocyte involved (B-cells or T-cells) and other specific features. The most common types of high grade NHL are Diffuse Large B-cell Lymphoma (DLBCL), Burkitt Lymphoma and Peripheral T-cell Lymphoma. Rarer types of high grade NHL includes Lymphoblastic Lymphoma, Blastic NK cell Lymphoma etc.
What are the treatment options for B-NHL?
The treatment approach depends on the type, stage, and overall health of the patient.
Chemotherapy
Chemotherapy are drugs used to stop the growth of cancer cells. It is achieved either by killing the cells or by stopping them from dividing. Chemotherapy can be taken orally or injected into a vein or muscle.
Radiation Therapy
Radiation therapy uses high-energy x-rays or other types of radiation to kill cancer cells, hence, limiting their growth. It may also be used to prepare the hematopoietic stem cell transplantation also.
Hematopoietic stem cell transplantation
It is a treatment to replace the blood-forming cells. In certain cases, high-dose chemotherapy is followed by a stem cell transplant to help regenerate healthy blood cells.
Targeted Therapy
Targeted therapy are drugs which identify and attack specific cancer cells, sparing the healthy cells.
Immunotherapy
Immunotherapy is a treatment that uses the patient’s immune system to fight cancer. This cancer treatment is a type of biologic therapy.
CAR T-Cell Therapy
Chimeric antigen receptor (CAR) T-cell therapy is a novel treatment to fight some cancers including B-NHL. It involves using your body’s own immune system to treat your cancer.
