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Mesothelioma Help Center - Mesothelioma Dictionary

Mesothelioma Dictionary

Mesothelioma Dictionary of Legal & Medical Terms
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L

Laminar Air Flow Unit
Air-filtering system used to remove particles and fungi from the air.
Langerhans Cell
Type of dendritic cell in the skin and mucous membranes that transports antigens to the lymph nodes.
Laparoscope
A lighted tube that is inserted into the abdomen to examine the abdominal wall. The procedure is called Laparoscopy. (See also peritoneoscope/peritoneoscopy).
Laparoscopy
Procedure involving the insertion of a thin, lighted tube (called a laparoscope) into the abdominal wall to inspect the inside of the abdomen.
Laryngectomy
The removal of the larynx.
Last Will and Testament
A last Will and Testament is a statement of what a person wants done with their estate after they die. It is always a good thing for even the healthiest of people to maintain a current and updated Will. It is even more important that a person with a serious illness should do so.
Latency Period
Time between exposure and development of symptoms. Example: The latency period for developing mesothelioma can be 25-30 30 years after asbestos exposure.
Lavage
Washing out an organ or cavity, to obtain a sample for diagnosis.
Lawsuit (mesothelioma Ė Asbestos lawsuit)
Legal action by one person or entity against another person or entity.
LD50
Dose of a chemical that results in death in 50% of the target population.
Lesion
A lump that may be caused by injury or disease, such as cancer.
Leukemia
Cancer of the blood. White blood cells can be produced in excessive amounts and are unable to work properly.
Leukocyte
The immune systemís white blood cell such as monocyte, and CD4 cell. Various types of leukocytes are involved in the bodyís defense against infection and disease.
Leukopenia
Low number of white blood cells in the circulating blood.
Leukoplakia
The formation of white patches on the tongue or cheek. These are often pre-malignant.
LHRH Analogs
Stands for Leuteinizing Hormone-Releasing Hormone, it is a man-made hormone that blocks the male hormone testosterone; sometimes used as a treatment for prostate cancer.
Liable
Legally responsible for damages
Ligand
Molecule that binds to a specific receptor.
Limit of Detection
Lower boundary of an assay, a viral load test. The limit of detection is the level below which a test cannot measure the presence of a component such as HIV RNA.
Linear Accelerator
Machine that is used in radiation therapy to treat cancer. It gives off gamma rays and electron beams.
Liposome (Lipid Vesicle)
Spherical particle of fat in a liquid. Liposomes may be used to carry drugs or other substances to cells or tissues.
Lithium
Metallic element used to treat mania or bipolar affective disorder or manic-depression.
Living Will
A Living Will is a declaration that a person desires to forego heroic measures and artificial means of life support if there is not a reasonable expectation of meaningful recovery. A Living Will generally states that they would prefer not to have extraordinary medical treatment or artificial nutrition or hydration used to keep them alive if there is no reasonable hope of recovery. A Living Will generally states that they would prefer not to have administered such extraordinary medical treatment or artificial nutrition and hydration and gives the doctor permission to withhold or withdraw life support systems under certain conditions. If a person is unable to make these decisions for themselves, a Living Will can state who will make those decisions.
L-NDDP (Aroplatin)
Intrapleural administration is made to exceed the usefulness of other platinum drugs like Cisplatin that are limited by toxicity and drug resistance.
Lobectomy
Surgical procedure which the lobe of a lung is removed. (Mesothelioma)
Local Anesthetic
A drug that causes loss of feeling or pain. During an operation, the patient is usually asleep.
Local Recurrence
Treated cancer that comes back where it originally was; with mesothelioma, a local recurrence occurs in the pleura most frequently after surgery for the tumor.
Localized Cancer
Cancer that does not spread to other parts of the body.
Localized Mesothelioma
Mesothelioma that hasnít spread to other organs of the body.
Log
Quantities in factors of 10. A log change is an exponential or 10-fold increase or decrease.
Loop Electrosurgical Excision Procedure (LEEP)
Heated wire loop to remove a cone-shaped wedge from the bottom of the uterine cervix for biopsy.
Lumen
Cavity or channel in a tubular organ, such as a blood vessel.
Lump
A mass in the body.
Lumpectomy
See Mastectomy-Segmental.
Lung Cancer
Abnormal cells that have become uncontrollable in lunch tissue. Primary lung cancer originates in the lungs, while metastic lung cancer spreads to the lungs from another organ. Classification is based on the type of cell the cancer originates from: adenocarcinoma, alveolar cell carcinoma, squamous cell carcinoma, large cell, and small cell carcinomas. Asbestos-Mesothelioma lung cancer)
Lungs
A pair of breathing organs located within the chest which remove carbon dioxide from and bring oxygen to the blood. There is a right and left lung.
Lymph Node
Small oval bodies throughout the body that contains lymphatic tissue that is surrounded by a capsule of connective tissue. They act as a first line of defense against infections and cancer. Lymph nodes filter lymph fluid, and they store lymphocytes which are white blood cells. They are located along lymphatic vessels. Also called lymph gland. The involvement of lymph glands by mesothelioma changes the stage to a higher one and is an indication of a more advanced tumor.
Lymph
Almost colorless fluid that travels through vessels called lymphocytes in the lymphatic system and carries cells that help fight infection and disease.
Lymphangiogram
A test that looks at the lymph nodes.
Lymphatic System
Tissues and organs that produce and store lymphocytes and the channels that carry the lymph fluid. The entire lymphatic system is an important part of the body's immune system. Invasive cancers sometimes come into the lymphatic vessels and spread to lymph nodes.
Lymphatic Vessels
Tubes that connect lymph nodes and allow flow of lymph.
Lymphedema
Swelling from obstructed cancerous lymph nodes or from removed lymph nodes.
Lymphocytosis
The increase in the number of lymphocytes in the blood, usually happens with chronic infections or inflammation. White blood cells that kill viruses or bacteria, and defend against the invasion of foreign material.
Lymphokine
Chemical messenger produced by lymphocytes that controls immune responses by stimulating macrophages, killer cells and other lymphocytes.
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.
Lysosome
Minute organelle within a cell that contains the lytic enzymes the chemicals that break open the cell wall.

Disclaimer: Mesothelioma Help Centerís Dictionary of Legal & Medical Terms is not designed to provide medical advice or professional services and is intended to be for educational use only. The information provided through Mesothelioma Help Center is not a substitute for professional care and should not be used for diagnosing or treating a health problem or a disease. If you have, or suspect you may have, a health problem you should consult your doctor. If you need legal help you should consult an experienced mesothelioma lawyer.

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Mesothelioma Symptoms

The most common Mesothelioma symptoms are the following:

Recent onset of shortness of breath (31%)
Recent increase in shortness of breath (30%)
Chest pain (43%)
 
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