tumor

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tu·mor

 (to͞o′mər, tyo͞o′-)
n.
1. An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.
2. A swollen part; a swelling: a plant tumor.

[Middle English tumour, from Latin tumor, from tumēre, to swell; see teuə- in Indo-European roots.]

tu′mor·al, tu′mor·ous adj.

tu•mor

(ˈtu mər, ˈtyu-)

n.
1. a swollen part; swelling; protuberance.
2. an uncontrolled, abnormal, circumscribed growth of cells in any animal or plant tissue; neoplasm.
Also, esp. Brit.,tu′mour.
[1535–45; < Latin: a swelling =tum(ēre) to swell + -or -or1]
tu′mor•ous, tu′mor•al, adj.

tu·mor

(to͞o′mər)
An abnormal growth of tissue resulting from uncontrolled growth of cells and serving no function within the body; a cancerous growth. Tumors can be benign (unlikely to spread to other body parts) or malignant (likely to spread). See Note at cancer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tumor - an abnormal new mass of tissue that serves no purposetumor - an abnormal new mass of tissue that serves no purpose
growth - (pathology) an abnormal proliferation of tissue (as in a tumor)
acanthoma, skin tumor - a neoplasm originating in the epidermis
angioma - a tumor consisting of a mass of blood or lymphatic vessels
blastocytoma, blastoma, embryonal carcinosarcoma - a tumor composed of immature undifferentiated cells
brain tumor, brain tumour - a tumor in the brain
carcinoid - a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin
celioma - an abdominal tumor
granuloma - a tumor composed of granulation tissue resulting from injury or inflammation or infection
adipose tumor, lipoma - a tumor consisting of fatty tissue
malignant neoplasm, malignant tumor, metastatic tumor - a tumor that is malignant and tends to spread to other parts of the body
meningioma - a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant
neurilemoma, neurofibroma - tumor of the fibrous covering of a peripheral nerve
neuroma - any tumor derived from cells of the nervous system
phaeochromocytoma, pheochromocytoma - a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension
pinealoma - tumor of the pineal gland
plasmacytoma - neoplasm of plasma cells (usually in bone marrow)
psammoma, sand tumor - a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles
teratoma - a tumor consisting of a mixture of tissues not normally found at that site
Translations
nádor
svulst
kasvain
tumor
腫瘍
종양
nádor
tumor
tumör
เนื้องอก
khối u

tumor

وَرَم nádor svulst Tumor όγκος tumor kasvain tumeur tumor tumore 腫瘍 종양 tumor svulst guz tumor опухоль tumör เนื้องอก ur khối u 肿瘤

tu·mor

n. bulto o hinchazón; tumor.
crecimiento espontáneo de tejido nuevo en masa que no tiene propósito fisiológico alguno;
diffuse ______ difuso;
inflammatory ______ inflamatorio;
medullary ______ medular;
necrotic ______ necrótico;
nonsolid ______ no sólido;
radioresistant ______ radiorresistente;
radiosensitive ______ radiosensitivo;
scirrhous ______ escirroso;
undifferentiated ______ no diferenciado.

tumor

adj tumoral; n tumor m; benign — tumor benigno; brain — tumor cerebral; desmoid — tumor desmoide; malignant — tumor maligno; Wilms' — tumor de Wilms
References in periodicals archive ?
1) The term PNET was coined by Hart and Earle (2) in 1973 for predominantly undifferentiated tumours of the cerebellum that did not match the diagnostic criteria for neuroblastoma, ependymoblastoma, medulloblastoma or pineal parenchymal tumours.
We ascertained all cases of medulloblastoma [International Classification of Disease Oncology (ICD-O) code 9470], PNET (ICD-O code 9473), and astrocytoma [International Classification of Childhood Cancer, version 3 (ICCC-3) code 032] before age 6 years diagnosed in 1990-2007, from the California Cancer Registry (http://www.
A diagnosis of ES/ PNET requires a combination of histological, immunohistochemical, and molecular analysis of tumour cells.
Temozolomide, an alkylating agent with cerebrospinal fluid penetration currently used in aggressive disease such as high-grade glioma and metastatic malignant melanoma, was thought to be appropriate due to the more highly aggressive nature of radiation-induced PNET versus primary PNET.
3,4,6] Frequently, an atypical teratoid/rhabdoid tumour is confused with a PNET on histopathological evaluation.
Conventionally, the diagnosis of the PNET can be made based on histological examinations.
4,5 Peripheral PNET tumors oc- cur in bone and soft tissues.
The literature reports 43 patients with PNET in the head and neck region, with a mean age of 21 years (9).
Finally, in the 15 to 17 years old age group, pilocytic astrocytoma (WHO grade I) (35%), astrocytoma (WHO grade II) (12%), and supratentorial PNET (7%) topped the list.
The undifferentiated subtype had ultrastructural features with the neurological characteristics of neuroblastoma and lacked a chimeric transcript (EWS-FLI1 or ERG) that is specific for PNET.
However, recent gene expression profiling has shown that some medulloblastomas have a distinct molecular profile and are distinct from other PNET tumors.