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Refers to the death of living tissues.
Needle biopsy
The removal of tissue or fluid with a needle for examination under a microscope. Also called fine-needle aspiration.
A new growth of tissue or cells; a tumor that is generally malignant.
Having to do with the interactions between the nervous system and the endocrine system. Neuroendocrine describes certain cells that release hormones into the blood in response to stimulation of the nervous system.
Neuroendocrine markers
The measurement of general and specific biochemical markers in patients with neuroendocrine tumours assists with diagnosis and gives an indication of the effectiveness of treatment and they may be used as prognostic indicators.These are substances sometimes found in the blood, other body fluids, or tissues. A high level of tumor marker may mean that a certain type of cancer is in the body. Examples of neuroendocrine tumor markers include Urine 5-HIAA, blood serotonin, chromogranin A., pancreatic polypeptide, gastrin etc. Also called biomarker.
Neuroendocrine tumor (NET)
A tumor derived from cells that release a hormone in response to a signal from the nervous system. Some examples of neuroendocrine tumors are carcinoid tumors, islet cell tumors, medullary thyroid carcinoma, and pheochromocytoma. These tumors secrete hormones in excess, causing a variety of symptoms.
A problem in peripheral nerve function (any part of the nervous system except the brain and spinal cord) that causes pain, numbness, tingling, swelling, and muscle weakness in various parts of the body. Neuropathies may be caused by physical injury, infection, toxic substances, disease (e.g., cancer, diabetes, kidney failure, or malnutrition), or drugs such as anticancer drugs. Also called peripheral neuropathy.
A substance such as a hormone or protein that is found naturally in the body and that carries signals between nerve cells and other cells.
Nicotinamide (B3)
Niacinamide is the amide form of nicotinic acid (Niacin). It is often used interchangeably with niacin. However it does not cause the flushing that niacin does. Caution must be exercised with niacin, niacinamide and sustained release niacin because larger doses may cause liver damage. The first indications of over-use are usually nausea and elevations of liver enzymes.
Non-Hodgkin’s lymphoma
A cancer of the lymphatic system . Non-Hodgkin's lymphoma is related to Hodgkin's disease but is made up of different cell types. See Lymphoma.
Non-small cell lung cancer
A group of lung cancers that includes squamous cell carcinoma, adenocarcinoma, and large cell carcinoma.
A drug given to people to prevent them feeling pain, especially during an operation on their teeth.