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Non-small-cell lung cancer (NSCLC), or non-small-cell lung carcinoma, is any type of epithelial lung cancer other than small-cell lung cancer (SCLC). NSCLC accounts for about 85% of all lung cancers. [1] [2] [3] As a class, NSCLCs are relatively insensitive to chemotherapy, compared to small-cell carcinoma.
Epithelioma is an abnormal growth of the epithelium, which is the layer of tissue that covers the surfaces of organs and other structures of the body. [ 1 ] Classification
"Dyskaryosis" is a term used for all squamous mucosal surfaces and commonly used for the uterine cervix condition in which some of the epithelial cells near the external orifice show abnormalities in their cellular nuclei. These changes are often quite subtle; often seen as temporary changes between the ages of fifteen and twenty-five.
Carcinoma in situ, meaning "cancer in place", represents the transformation of a neoplastic lesion to one in which cells undergo essentially no maturation, thus may be considered cancer-like. In this state, epithelial cells have lost their tissue identity and have reverted to a primitive cell form that grows rapidly and with abnormal regulation ...
In the literature, CEACAM5 is often used as a synonym for cancer embryonic antigen (CEA), a well-known biomarker of many types of malignancies, such as colorectal cancer and non-small-cell lung cancer. [4] [5] Its primary function in the embryonic intestine and colon tumors is adhesion between epithelial cells. [6]
In normal epithelial tissues, epithelial cells, or parenchymal cells of epithelia, are highly organized, polar cells. [5] These cells are separated from stromal cells by a basement membrane that prevents these cell populations from mixing. [5] A mixture of these cell types is recognized, normally, as a wound, as in the example of a cut to the ...
For example, a lipoma is a common benign tumor of fat cells , and a chondroma is a benign tumor of cartilage-forming cells (chondrocytes). Adenomas are benign tumors of gland-forming cells, and are usually specified further by their cell or organ of origin, as in hepatic adenoma (a benign tumor of hepatocytes, or liver cells).
Lymphoepithelioma-like carcinoma (LELC) is a medical term referring to a histological variant of malignant tumor arising from the uncontrolled mitosis of transformed cells originating in epithelial tissue (or in cells that display epithelial characteristics) that bear microscopic resemblance to lymphoepithelioma (nasopharyngeal carcinoma).