Understanding Relapsed Mantle Cell Lymphoma (MCL)
The more you know about your condition, the more comfortable you may feel with your treatment options.
Relapsed MCL is a cancer of the blood. It is a rare form of non-Hodgkin lymphoma (NHL)—about 5% of all NHL, or 3000 cases a year, are MCL. It is most common in men over the age of 60.
Relapsed MCL affects white blood cells called lymphocytes. Lymphocytes are mainly found in the lymphatic system, which includes your bone marrow, your spleen, and your lymph nodes.
The Lymphatic System
The lymphatic system acts as the vehicle that transfers lymphocytes to your organs and helps protect against disease and infection. There are 3 main elements of the lymphatic system:
- Lymphocytes are a type of white blood cell produced in the bone marrow that help fight infections and other diseases throughout the body
- Lymph is a clear fluid that contains lymphocytes which are carried throughout the lymphatic vessels. From these vessels, the lymphocytes can enter the blood or the tissues to respond to infections
- Lymph nodes are small rounded masses of tissue along the lymphatic vessels that filter the flow of lymph throughout the body
How Relapsed MCL Affects the Lymphatic System
Relapsed MCL affects lymphocytes that are in the mantle zone of a lymph node.
Normal lymphocytes help fight infections and other diseases throughout the body, but cancerous lymphocytes grow and accumulate uncontrollably, forming tumors. These tumors then cause the lymph nodes to enlarge.
Relapsed MCL is considered an aggressive cancer. At the time of diagnosis it is common for relapsed MCL to have already spread to other parts of the body.
NEXT: Symptoms of Relapsed MCL
A type of white blood cell that helps fight infection
A cancer of lymphocytes (a type of white blood cell that fights infection) which can be localized or widespread. Often presents as a lump in an area of lymph nodes such as the neck, armpit or chest. There are many types, but two broad categories are B-cell or T-cell
Soft, sponge-like area in the center of large bones that contains hematopoietic stem cells for production of white blood cells, red blood cells, and platelets
Infection-fighting blood cells made in the bone marrow. There are two main types of white blood cells: lymphocytes and myeloid cells. As some myeloid cells and some lymphocytes only live for a few days, the bone marrow is constantly making new cells to replace the old ones in the blood. The bone marrow normally makes millions of blood cells every day. When they are mature enough to leave the bone marrow, the white blood cells are released into the bloodstream to circulate around the body. Lymphocytes, unlike the myeloid cells, also circulate in the lymphatic system.
A dark purplish flattened oblong organ that is located in the abdomen and plays a role in the final destruction of red blood cells, filtration and storage of blood, and production of lymphocytes
A rounded mass of tissue along the lymphatic vessels which filters the flow of lymph passing through the node; lymph is a clear fluid that resembles blood except that it does not contain any red blood cells. Lymph nodes are also where lymphocytes are recruited to fight infection
The outer layer of a lymph node; made up of B-cells