Glossary

Browse through glands, hormones and endocrine conditions.
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Non-functioning pituitary tumours

Non-functioning pituitary tumours are the most common benign growths in the pituitary gland. These tumours are usually identified because of impaired vision or hormone deficiencies.

Non-functioning pancreatic NETs

Non-functioning pancreatic neuroendocrine tumours (NETs) are tumours that originate in specialised cells of the pancreas.

Nelson's syndrome

Nelson's syndrome is the name given to the enlargement of a pituitary gland tumour associated with excess secretion of adrenocorticotropic hormone following the surgical removal of both adrenal glands, usually to treat Cushing's disease.

negative feedback

a control mechanism in the body whereby production of a hormone is switched off when levels in the bloodstream become too high.

neurotransmitter

a chemical in the body with a job of relaying messages between nerve cells (neurons).

nuclear medicine

a type of investigative procedure using small amounts of radioactive materials, which are attracted to bones or tissues. Special cameras pick up the emitted gamma rays, which are turned into computer images of the body parts being examined.

neurological

of or to do with the nervous system.

neurosurgery

a procedure on the brain or nervous system.

neurons

nerve cells.

nodule

a lump or growth found on a tissue in the body.


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