neuroendocrine tumor
A cancer arising from neuroendocrine cells that can secrete hormones and occur throughout the body.
Full Definition
Neuroendocrine tumors (NETs) are a heterogeneous group of cancers that develop from neuroendocrine cells, which have characteristics of both nerve cells and hormone-producing endocrine cells. These tumors can occur in various organs including the pancreas, gastrointestinal tract, lungs, and other sites. NETs are classified by grade and stage, with some being functional (hormone-secreting) and others non-functional. Treatment approaches vary based on location, grade, and functional status.
Usage
Usage note: Preferred over older term 'carcinoid tumor' in current medical literature.
In Context
- "The patient's neuroendocrine tumor was classified as a Grade 2 pancreatic NET." — pathology report
- "Octreotide scan revealed multiple neuroendocrine tumor deposits in the liver." — imaging report