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Lymphomas, Extraintestinal

Lymph System. National Cancer Institute.What Are Extraintestinal Lymphomas?

Extraintestinal lymphomas (non-Hodgkin’s) are malignancies that arise in peripheral lymphatic tissue outside the intestinal tract from B-cell and T-cell lymphocytes.

Q: What is peripheral lymphatic tissue?

A: Peripheral lymphatic tissue includes lymph vessels, lymph, lymph nodes, and lymphocytes.

Lymph vessels branch into all the tissues of the body, carrying lymph, a clear fluid that contains white blood cells, especially B-cell and T-cell lymphocytes.

Lymph vessels are connected to lymph nodes which are small, round masses of tissue that store white blood cells. They also trap and remove bacteria or other harmful substances that may be in the lymph. Groups of lymph nodes are found in the neck, underarms, chest, abdomen, and groin.

Ninety percent (90%) of extraintestinal lymphomas are B-cell type and ten percent (10%) are T-cell type. In this malignancy, lymph nodes are replaced by cancer cells. Some are more aggressive than others.

In 2010, there were an estimated 509,065 people living with non-Hodgkin lymphoma in the United States according to the National Cancer Institute.

What Are Extraintestinal Lymphomas In Celiac Disease and/or Gluten Sensitivity?


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