Non-Hodgkin lymphomas (NHL)

Posted by adin | December 4th, 2009 in Non-Hodgkin lymphomas | 3 Comments »

Non-Hodgkin lymphomas (NHL) are a group of syndromes of the lymphatic system. You can say that is a cancer that occurs in this system.
It is the fifth most common cancer type. In the United States last year, some 55,000 cases were diagnosed and 26,000 deaths occurred.

The lymphatic system is a system consisting of vessels and to carry lymph nodes.

Lymph is a colorless fluid containing white blood cells.

The three main types of white blood cells are monocytes, granulocytes and lymphocytes.

These cells are responsible for defending the body. The principal cells called lymphocytes. They recognize any substance foreign to the body and release substances that destroy the offending agent.

There are two types of lymphocytes, B and T. B-cell lymphomas are more common than T-cell lymphomas These two types are responsible for 85% to 15%, respectively, of all non-Hodgkin lymphomas. There are several types of T cells and B, as their development and morphology.
There are many types of lymphomas, more than twenty. Lymphomas are usually differentiate and resemble a type of lymphocyte.

Non-Hodgkin lymphomas are potentially curable tumors. Because there are many ways to identify what is important is the lymphoma presenting the person to be classified within a particular group and set the specific treatment of that disease.

Lymph nodes are located in different parts of the body, shaped like a bunch of grapes, contain lymph and are the point of arrival and departure of lymphatic vessels that run throughout the body.

Some nodes are found in shallower areas than others, such as the neck or underarm. Most surface can be felt, even seen, when inflamed. They can become inflamed when an infection occurs, but also when there is a lymphoma.

The spleen, blood vascular gland, located on the left side of the abdomen below the ribs, produces lymphocytes and other cells of the lymphatic system. It also stores healthy blood cells and filters out damaged cells, bacteria and waste products from cells.

The thymus is a gland at the base of the neck and also produces immune cells.

The tonsils and adenoids are clusters of lymphoid tissue located in the back of the throat. They produce antibodies against germs inhaled or swallowed.

The marrow inside the bones, is responsible for producing red blood cells, white cells and platelets.


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