Lymphopenia
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  Lymphopenia



Lymphopenia

   A reduction, relative or absolute, in the number of lymphocytes in the circulating blood.

RELATED TERMS
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Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.



SIMILAR TERMS
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Lymph
Consists primarily of a clear, yellowish fluid and white blood cells. Found in the lymphatic system.

Lymph node
Any of many small, compact structures lying in groups along the course of the lymphatic vessels and producing lymphocytes.

Lymph nodes
Small glands clustered in the neck, armpits, abdomen, and groin that supply infection-fighting cells to the bloodstream and filter out bacteria and other antigens.

Lymphadenectomy
A procedure in which lymph nodes are taken from the body for purposes of diagnosing or staging cancer.

Lymphadenitis
Inflammation of the lymph nodes.

Lymphadenopathy
Any disease process affecting a lymph node or lymph nodes.

Lymphangiectasia
Dilation of the lymphatic vessels; may be congenital or acquired.

Lymphangiogram
An x-ray that uses a special dye to determine whether cancer has spread to the lymph nodes.

Lymphangitis
Inflammation of a lymph vessel.

Lymphatic system
The vessels and structures involved in carrying lymph from the tissues to the blood.

Lymphatic Vessels
Drain lymph from tissues and returns it to the blood.

Lymphazurin
Lymphazurin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): isosulfan blue.

Lymphedema
Swelling of tissue because of the buildup of too much lymph fluid.

Lymphocyte
White blood cell. Lymphocytes have a number of roles in the immune system, including antibody production, attacking and destroying cancer cells, and producing substances that kill cancer cells.

Lymphokine
A cytokine produced by lymphocytes.

Lymphokines
Soluble substances secreted by lymphocytes, which have a variety of effects on lymphocytes and other cell types.

Lymphoma
Cancer of the lymphoid tissues. Lymphomas are often described as being large cell or small cell types, cleaved or non-cleaved, or diffuse or nodular. The different types often have different prognoses. Lymphomas can also be referred to by the organs where they are active, such as CNS lymphomas, which are in the central nervous system, and GI lymphomas, which are in the gastrointestinal tract. The types of lymphomas most commonly associated with HIV infection are called non-Hodgkin's lymphomas or B cell lymphomas. In these types of cancers, certain cells of the lymphatic.



PREVIOUS AND NEXT TERMS
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Laparoscopic surgery
Surgery using small incisions that allow for fine surgical instruments and a miniature camera to be inserted into the body. Surgeons are then able to inspect internal organs and to carry out Operations with minimal disturbance to the surrounding tissues.

Laser
An acronym of light amplification by stimulated emission of radiation. A surgical tool that creates intense heat and power when focused at close range, destroying cells by vaporizing them.

Local
In the area of the tumor; confined to one specific area.

Lumbosacral
Relating to the lumbar vertebrae and the sacrum.

Lymphadenopathy
Any disease process affecting a lymph node or lymph nodes.

Lymphopenia

Latency period
The period between exposure to a disease-causing agent and the onset or appearance of disease symptoms. The latency period for asbestos-related diseases ranges from 15 years for asbestosis to 30 years or more for lung cancer and mesothelioma.

Longitudinal study
Investigation in which data are collected from a number of subjects over a long period of time.

L.Ac. (Lic.Ac.)
Licensed Acupuncturist.

Laying on of hands
Contact healing.

Life energy
See "vital force."

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