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Cancer and Leukaemia Terms and Titles

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Displaying 58 terms beginning with "L"

 

L-3.5.5 - Tetreoidothyronine

See T4.


Laboratory

This is a special building or part of a building, in which tests are carried out by scientists, qualified people. These tests, sometimes referred to as research or studies, are to see whether particular treatments, drugs or procedures will be helpful in treating disease, illness or injury and that they are safe.


Laboratory Research

See Laboratory Tests.


Laboratory Studies

See Laboratory Tests.


Laboratory Tests

Laboratory Tests, Research or Studies are tests, also known as research or studies, which are carried out in a laboratory, to see whether a treatment, drug or procedure would be helpful for treating disease, illness or injury. Many laboratory studies will be carried out before a drug, treatment or procedure is tried out on humans. These studies may just be done in test tubes but some things will be tested on animals before being tested on humans.


Labrocytes

See Mast Cells.


Laparoscope

Laparoscope (pronounced lap are row scope) is a thin, (flexible) bendy tube, filled with optical fibres with a light on the end. It is used for looking at abdominal organs, to take a biopsy or to carry out small abdominal operations.


Laparoscopic Surgery

See Keyhole Surgery.


Laparoscopic ultrasound

Laparoscopic ultrasound, Laparoscopy or Laparotomy is a minor or small operation, where a laparoscope is inserted, pushed through, a small cut in the abdomen. A doctor is then able to see inside the body and can take a biopsy. It is also possible to take pictures of the inside of the abdomen. These operations can be used to diagnose or to see how well chemotherapy has worked.


Laparoscopy

See Laparoscopic ultrasound.


Laparotomy

See Laparoscopic ultrasound.


Large Bowel

See Colon.


Large Intestine

See Colon.


Laser Therapy

Laser Therapy or Laser Treatment is where lasers are used to deal with or treat abnormal cells.


Laser Treatment

See Laser Therapy.


Lasers

These are very concentrated or intense beams of light, strong enough to cut through body tissue. Lasers can be used in treatment to kill off abnormal pre-cancerous cells and to deal with advanced cancer. Lasers are very precise and accurate, causing less damage than a knife. This is because lasers seal or cauterise damaged blood vessels as they cut.


Launched

A new drug is launched when a pharmaceutical company decides they want make a licensed, approved or registered drug available for doctors to prescribe.


Lead screens

Whilst patients are receiving internal radiotherapy, to protect hospital staff and visitors from radiation, screens made of lead round the patient.


Lesion

This is any abnormal tissue found on or in the body. Usually this is a result of disease or injury. It may or may not be cancer.


Leukaemia

Leukaemia (pronounced lew key me a) is cancer of the white blood cells. There are two main types of leukaemias, acute and chronic, both which affect the white blood cells that develop from cells called lymphoblasts or myeloblasts. So there are acute lymphoblastic leukaemias (ALL) and acute myeloid leukaemias (AML), as well as chronic lymphoblastic and chronic myeloid leukaemias.


Licensed

See Marketing Authorisation.


Linac

See Linear accelerator.


Linear accelerator

Linear accelerator or Linac is a machine that is used to produce and direct high energy radiation beams to treat cancer.


Lipomas

Lipomas are non-cancerous or benign lumps which form under the skin. These are formed by fatty tissue building up under the skin.


Liposarcoma

Liposarcoma are cancers, starting in the body's fat cells, which can occur anywhere in the body.


Liver

The liver is the largest organ in the human body. It performs many important jobs or functions. These include: storing vitamins, producing blood proteins and substances that help blood clotting, getting rid of waste products, drugs and other chemicals. It also deals with carbohydrates, proteins and fats, as well as cleaning worn-out blood cells and bacteria out of the blood.


Liver function tests

Liver function tests are blood tests, carried out by doctors to make sure the liver is working, functioning, as it should.


Liver ultrasound

This is a scan of the liver, using sound-waves, to check that the liver is working, functioning, as it should.


Lobectomy

This is an operation to remove a lobe or part of an organ.


Lobes

Lobes are the sections or main parts of an organ, such as the brain, the lungs, the liver.


Local Anaesthetic

This an anaesthetic, which only makes a part of the body numb but the person remains conscious, fully awake and alert. An anaesthetic is used so that an operation or procedure can be carried out, without the patient feeling pain.


Local Invasion

See Local spread.


Local Recurrence

This is way a cancer recurs or comes back to the same part of the part as happened before.


Local Resection

This is an operation to remove a cancer in its early stages, before it has started to spread from the place which it had started to grow.


Local spread

Local spread is where the cancer has moved or spread into an area next to or adjacent, to where it began to grow. If the cancer has moved to other parts of the body, further away from where it started to grow, it is known as secondary cancer or metastasis.


Local Treatment

Local Treatment or Localised Treatment is a course of treatment, such as surgery or radiotherapy, that just treats one area of the body. Systemic treatment, is a course of treatment, which affects the whole of the body.


Localised Cancer

Localised Cancer is a cancer which affects only the area of the body where it started to develop and the tissues immediately next to it. A localised bone cancer, for instance, only affects the bone in which it started and possibly in an adjoining muscle or tendon.


Localised Treatment

See Local Treatment.


Long Term Effects

Long Term Effects or Long Term Side Effects are the long-lasting and sometimes permanent, unwanted results or effects of a course of treatment. Sometimes the long term effects of radiotherapy may not appear for months, even years, after treatment has finished.


Long Term Side Effects

See Long Term Effects.


Low blood count

After a blood test has been taken the levels of red or white blood cells in the specimen are counted. If the number is lower than normal, the patient is said to have a low blood count.


Low Grade

Where a disease is called low grade, it means it is slower growing and less acute than high grade.


Low Grade Lymphomas

Low Grade Lymphomas are slower growing and less acute diseases than high grade. Usually they will be treated with mild chemotherapy. If they are not causing any problem, doctors may just keep an eye on or monitor a patient. Low grade lymphomas can often be kept under control for many years, though it is difficult to cure them completely.


Low malignant potential

Low malignant potential means a cancer is low grade and is not likely to grow or spread quickly.


Lumbar puncture

This is a test where a doctor puts a needle into the spine, to collect a small amount of fluid or a specimen, to look for signs of anything abnormal. In the case of cancer, the specimen is checked to see if there are any cancer cells in the fluid. The fluid is cerebrospinal fluid (CSF) the clear body fluid that circulates in and around the central nervous system.


Lump

Lumps are swellings usually referred to as tumours and may be benign or malignant. They are caused by an abnormal growth of cells.


Lumpectomy

Lumpectomy is an operation to remove, take out a lump.


Lungs

These are two organs, one on the left and one on the right of our chest. When we breathe in, the air passes through the lungs and the oxygen it contains is filtered or taken out. The oxygen goes into the blood. The blood carries the oxygen around the body to provide the energy all parts of the body need. The body uses the oxygen and produces carbon dioxide as a waste product. The blood then carries the carbon dioxide back to the lungs. The lungs then filters it out and gets rid of it, when we breathe out.


Lymph

The colourless fluid containing white blood cells, which bathes the tissues of the body.


Lymph Glands

See Lymph Nodes.


Lymph Nodes

Lymph Nodes are small organs that store cells that fight infection and other diseases. They are located throughout the body along the channels of the lymphatic system.


Lymphadenectomy

Lymphadenectomy is the operation to remove or take out lymph nodes.


Lymphatic system

This is system of tubes and glands in the body which fights infection and filters body fluid. It is made up of the spleen, the lymphatic vessels and the lymph glands.


Lymphoblastic

Lymphoblastic means to do with Lymphoblasts.


Lymphoblasts

Lymphoblasts are immature cells which are normally only found in the bone marrow. When someone has acute lymphoblastic leukemia (ALL), lymphoblasts are overproduced and then found in large numbers in the blood.


Lymphocytes

Lymphocytes are a type of white blood cell that are part of the body's defence against disease, the immune system. There are two types: B-cells and T-cells. The T-lymphocytes or T-cells help the B-lymphocytes or B-cells make antibodies as part of the immune response.


Lymphoedema

Lymphoedema is the swelling of a part of the body due to a blockage of the lymph vessels, which can occur after surgery or radiotherapy. The lymphoedema or swelling occurs because cancer is blocking the lymph glands. The most commonly affected parts of the body are the arms or legs.


Lymphoma

Lymphoma is a cancer of the lymphatic system, which is part of our body's natural defence mechanisms. Lymphoma is either Hodgkin's disease or Hodkin's lymphoma or non-Hodgkin's disease or non-Hodgkin's lymphoma. Although these are different diseases, they have similar symptoms, such as tiredness, often heavy sweating, enlarged lymph nodes (glands), weight loss and unexplained high temperatures. Having similar symptoms, they are often treated similarly.




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