T cells (also called T lymphocytes) are a type of white blood cell (WBC) and a part of the immune system. Most are found in lymphoid organs such as lymph nodes which are found throughout the body. Large numbers of these cells can also be found in an area of inflammation caused by infection or …
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What is CD5? CD5 is a protein that is normally made by specialized immune cells called T cells. Most lymphomas that start from T cells, including peripheral T cell lymphoma, anaplastic large cell lymphoma, and extranodal NK/T cell lymphoma, make CD5. Abnormal B cells can also make CD5, and some lymphomas that start from these …
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What is CD3? CD3 is a protein that is normally made by two types of specialized immune cells, T cells and NK cells. Most lymphomas that start from T and NK cells, including peripheral T cell lymphoma, anaplastic large cell lymphoma, and extranodal NK/T cell lymphoma, also make CD3. Why do pathologists test for CD3? …
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