tumor marker (redirected from Antigens, neoplasm)

marker /mark·er/ (mahrk´er) something that identifies or that is used to identify.

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tumor marker  a biochemical substance indicative of neoplasia, ideally specific, sensitive, and proportional to tumor load.

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tumor marker

n.

A substance, released into the circulation by tumor tissue, whose detection in the serum indicates the presence of a specific type of tumor.

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tumor marker,

a substance in the body that may be associated with the presence of a cancer.

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tumor,

n a swelling. Through usage the term is now synonymous with
neoplasm. See also neoplasm.

tumor, adenomatoid odontogenic (AOT)

n a benign tumor that develops from odontogenic epithelium and usually surrounds the crown of an impacted tooth; histologically, it is composed of ducts lined by cuboidal or columnar cells. Also known as
adenoameloblastoma and
ameloblastic adenomatoid tumor.

tumor, basaloid mixed,

n See carcinoma, adenocystic.

tumor, Brooke's,

n.pr See epithelioma adenoides cysticum.

tumor, brown,

n a central giant cell tumor of the bone; associated with parathyroidism.

tumor, carotid body,

n a tumor formed about the carotid artery.

tumor, collision,

n a rare condition in which two neoplasms, both growing in the same general area, collide with the tumor elements and become intermingled.

tumor, Ewing's (endothelioma, Ewing's sarcoma),

n.pr See sarcoma, Ewing's.

tumor, giant cell,

n a benign neoplasm of bone, producing resorption and characterized by giant cells.

tumor, granular cell,

n a benign tumor of the oral soft tissue, most commonly the tongue. Usually of neural origin, these are characterized by the presence of large polygonal cells with a granular cytoplasm.

tumor, hormonal,

n localized enlargements of the gingivae that have the appearance of neoplasms and are associated with hormonal imbalance during pregnancy. Not a true tumor.

tumor, inflammatory,

n.pl a benign tissue growth made up of inflammatory cells; not a true tumor. The majority of oral growths fall into this category. See also granuloma, neoplasm.

tumor, keratocystic odontogenic,

n See keratocystic odontogenic tumor.

tumor marker,

n substances that are often found in elevated levels in the bloodstream, urine, or other bodily tissues when cancer is present in the body.

tumor, mixed,

n 1. one of a group of neoplasms of the salivary glands the histologic appearance of which suggests both epithelial and connective tissue origin, although they presently are considered of epithelial origin only. Benign and malignant types are possible.
2. a tumor arising from cells derived from more than one germ layer.

Mixed tumor.

tumor, mucoepidermoid,

n See carcinoma, mucoepidermoid.

tumor, odontogenic

n a neoplasm produced from tooth-forming tissues (e.g., odontogenic fibroma, odontogenic myxoma, ameloblastoma). See also calcifying epithelial odontogenic tumor.

tumor, turban,

n See carcinoma, basal cell.

tumor, Warthin's,

n.pr See cystadenoma, papillary, lymphomatosum.

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tumor marker

Biomarker Oncology Any substance present in ↑ amounts in serum that may be used for early CA detection; most TMs are nonspecific and little used to screen for CA; they may be used to detect recurrence–eg, CEA in Pts with known colorectal and other CAs Examples Oncofetal proteins–α-fetoprotein, CA-125–ovarian CA, CA-15-3–breast CA, CEA–ovarian, lung, breast, pancreas, GI tract CAs, PSA–prostate CA

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Patient discussion about Antigens, neoplasm.

Q. My wife(53) has elevated CEA and CA19.9 levels - near 150, without any concomitant reason/observation? Comment

A. Hi Bobby3,

The most important question is why were these tests done?
An elevated level may result from many causes, some of them are simple and some are more problematic. IMHO the best thing would be consulting her doctor to consider the need to check-up her alimentary system.
You can read more here (http://www.ascocancerfoundation.org/patient/ASCO+Resources/Patient+Guides/ASCO+Patient+Guide:+Tumor+Markers+for+Gastrointestinal+Cancers) and here (http://www.cancer.gov/cancertopics/factsheet/Detection/tumor-markers)

Q. what is a safe tumor marker number range?

A. depends on the marker...most of the markers are materials that found normally in our body. and there are a number of markers and their levels differentiate. what marker do you mean?