Medical Glossary
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Laryngectomy Surgical removal of the larynx.
Lesion Abnormal appearing area that may be caused by injury or disease.
Lesion A lump or abscess that can be caused by disease or injury.
Leukemia Cancer of the blood where white blood cells are produced more than they should. There are many types of leukemia.
Leukocyte Another name for a white blood cell.
Leukopenia A low number of white blood cells causing an increased risk of infection.
Liver Function Studies A blood test to evaluate how well the liver is functioning.
Lumpectomy Also referred to as a local excision or a partial mastectomy which is the removal of a small amount of breast tissue around the cancer.
Lymph nodes A system of small bean-shaped structures of lymphatic tissue which act as a filter for the body.
Lymphangiogram A test used to evaluate the lymph nodes where an injection of dye is given in the skin of the feet which then travels to the abdominal lymph nodes at which time an x-ray is taken.
Lymphatic System The tissues and organs (including lymph nodes, spleen, thymus, and bone marrow) that produce and store lymphocytes (cells that fight infection) and the channels that carry the lymph fluid.
Lymphedema Is the collection of fluid, usually in the arm because of the removal or damage to the lymph node system under the armpit causing the lymph fluid to not move in the normal fashion. This can cause swelling and discomfort in the limb. This can occur in the arm after a mastectomy or in the leg after surgery in the groin area.
Lymphocytes A type of white blood cell that helps to fight infection.
Lymphoma Cancer of the lymphatic system and involves a white blood cell called lymphoctes. There are many types of lymphomas which are grouped into two main categories: Hodgkin’s Lymphomas and Non-Hodgkin’s Lymphomas.