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Laryngectomy--The surgical removal of the larynx or voice box, resulting in the loss of normal speech. A laryngectomee is someone who has undergone this operation. (See Esophageal Speech)

Leukemia--Cancer of the blood-forming tissues (bone marrow, Iymph nodes, spleen). Leukemia is characterized by the overproduction of abnormal, immature white blood cells.

Leukoplakia--White plaques on the mucous membranes of the mouth and gums; may be precancerous.

Localized Cancer--A cancer still confined to its site of origin.

Lymph--A clear fluid circulating throughout the body (in the lymphatic system) that contains white blood cells and antibodies.

Lymph Gland--Also called lymph node. These glands produce lymph. They normally act as filters of impurities in the body.