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Lanreotide (Octreotate)
Lanreotide Autogel® is a new aqueous gel formulation of somatostatin analogue, which demonstrates sustained release over 28 days. (Manufactured by Ipsen)
Laparoscopy
The insertion of a thin, lighted tube (called a laparoscope) through the abdominal wall to inspect the inside of the abdomen and remove tissue samples.
Large cell carcinoma
Lung cancer in which the cells are large and look abnormal when viewed under a microscope.
Laryngectomy
The surgical removal of the larynx.
Larynx
The area of the throat containing the vocal cords and used for breathing, swallowing, and talking. Also called the voice box.
Latency
Describes a condition that is present but not active or causing symptoms.
Lesion
A lump or abscess that may be caused by injury or disease, such as cancer.
Leucovorin
Drug used to protect normal cells from high doses of the anticancer drug methotrexate. It is also used to increase the antitumor effects of fluorouracil and tegafur-uracil, an oral treatment alternative to intravenous fluorouracil
Leukemia
Cancer of the blood. White blood cells may be produced in excessive amounts and are unable to work properly.
Leukocyte
See White blood cell.
Leukopenia
A low number of white blood cells.
Ligation
The process of tying off blood vessels so that blood cannot flow to a part of the body or to a tumor.
Lumpectomy
See Mastectomy-Segmental.
Lupus
A chronic inflammatory connective tissue disease marked by skin rashes, joint pain and swelling, inflammation of the kidneys, inflammation of the fibrous tissue surrounding the heart (i.e., the pericardium), as well as other problems. Not all affected individuals display all of these problems. Also called systemic lupus erythematosus.
Lymph nodes
Hundreds of small oval bodies that contain lymph. Lymph nodes act as our first line of defense against infections and cancer.
Lymphangiogram
A test to look at the lymph nodes.
Lymphatic system
A network that includes lymph nodes, lymph, and lymph vessels that serves as a filtering system for the blood.
Lymphedema
Swelling either from obstructed cancerous lymph nodes or from surgically removed lymph nodes.
Lymphocytes
White blood cells that kill viruses and defend against the invasion of foreign material.
Lymphoma
A cancer of the lymphatic system. Doctors differentiate the different lymphomas by the type of cell that is involved in the makeup of the tumor. Treatments depend on the type of cell that is seen. Lysis In biology, lysis refers to the breakdown of a cell caused by damage to its plasma (outer) membrane. Lysis can be caused by chemical or physical means (for example, strong detergents or high-energy sound waves) or by an infection.