What is Peripheral T-cell Lymphoma?

PTCL is a form of lymphomaLymphoma
Cancer that begins in the lymphatic system. There are two basic categories of lymphoma: Hodgkin’s lymphoma and non-Hodgkin’s lymphoma (NHL); NHL includes a large, diverse group of cancers.
. Lymphoma is a cancerCancer
A term for a group of diseases in which abnormal cells divide without control and can invade nearby tissues.
of the white blood cells in the lymphatic systemLymphatic System
The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases. This system includes the bone marrow, spleen, thymus, lymph nodes, and lymphatic vessels (a network of thin tubes that carry lymph and white blood cells into all the tissues of the body).
. This system carries lymph fluid and white blood cellsWhite Blood Cells
Cells that help the body fight against infections and other diseases.
throughout the body and helps to fight infection.

You may hear healthcare professionals talking about two different types of lymphoma: Hodgkin’s and non-Hodgkin’s. PTCL is classified as one of the many non-Hodgkin’s lymphomas (NHL). NHL affects two particular types of white blood cells: lymphocytes called B cells and T cellsT Cells
A group of white blood cells that are of key importance in fighting infection.
. PTCL occurs when T cells develop and grow abnormally. Usually, no one knows why a person develops PTCL.

10%–15% of all newly diagnosed cases of NHL will be identified as a type of PTCL.

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