tumor - meaning and definition. What is tumor
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What (who) is tumor - definition

ABNORMAL MASS OF TISSUE AS A RESULT OF ABNORMAL GROWTH OR DIVISION OF CELLS
Tumor; Tumour; Tumors; Neoplastic; Secondary neoplasm; Mass (medicine); Tumours; Tumor cell; Tumor cells; Neoplastic cell; Neoplastic cells; Neoplastic tissue; Neoplastic growth; Neoplastic processes; Neoplasms; Neoplasias; Anaplastic degeneration; Neoplastic disease; Secondary cancer; Secondary neoplasms; Tumoral; Neoplasmic cells; Respiratory tract neoplasm; Respiratory tract neoplasms; Neoplasia; Skin tumor; Solid tumour; Solid tumor; Tumour cells; Solid tumors; Neoplastigen; Bednar tumour; Solid tumours; Neoplastic disorders
  • The central role of DNA damage and epigenetic defects in [[DNA repair]] genes in malignant neoplasms
  • Longitudinally opened freshly resected colon segment showing a cancer and four polyps, plus a schematic diagram indicating a likely field defect (a region of tissue that precedes and predisposes to the development of cancer) in this colon segment. The diagram indicates sub-clones and sub-sub-clones that were precursors to the tumors.

tumor         
n.
1) to excise, remove a tumor
2) a benign; inoperable; malignant tumor
tumor         
n.
Swelling, tumefaction.
Tumor         
·noun Affected pomp; bombast; swelling words or expressions; false magnificence or sublimity.
II. Tumor ·noun A morbid swelling, prominence, or growth, on any part of the body; especially, a growth produced by deposition of new tissue; a neoplasm.

Wikipedia

Neoplasm

A neoplasm () is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is removed. This abnormal growth usually forms a mass, when it may be called a tumour or tumor.

ICD-10 classifies neoplasms into four main groups: benign neoplasms, in situ neoplasms, malignant neoplasms, and neoplasms of uncertain or unknown behavior. Malignant neoplasms are also simply known as cancers and are the focus of oncology.

Prior to the abnormal growth of tissue, as neoplasia, cells often undergo an abnormal pattern of growth, such as metaplasia or dysplasia. However, metaplasia or dysplasia does not always progress to neoplasia and can occur in other conditions as well. The word is from Ancient Greek νέος- neo 'new' and πλάσμα plasma 'formation, creation'.

Examples of use of tumor
1. Don‘t Miss Senate colleagues react to news about Kennedy What Kennedy‘s diagnosis means Videos: Kennedy diagnosed with brain tumor iReport.com: Have you survived a tumor?
2. Senate, was diagnosed with a malignant brain tumor called a glioma, a type of tumor that usually kills within three years.
3. Certain types of chemotherapy can get into the brain to attack the tumor, but radiation is also used to directly kill the tumor cells.
4. An internationally known tumor and vascular surgeon, he is responsible for more than '0 percent of tumor resections and biopsies at Duke.
5. Women whose tumor reappeared in bone had a median survival of 2.4 years, longer than those in whom the tumor came back in either the lungs or liver.