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Examples of epithelial dysplasia include cervical intraepithelial neoplasia – a disorder commonly detected by an abnormal pap smear) consisting of an increased population of immature (basal-like) cells which are restricted to the mucosal surface, and have not invaded through the basement membrane to the deeper soft tissues.
Nearly all puppies are infected. They pick the parasite up when still with the mother, and since it causes anemia and stunts their growth, they need to be dewormed every two weeks while still nursing.
"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.
LCC is categorized as a type of NSCLC (non-small-cell lung carcinoma) that originates from epithelial cells of the lung. LCLC is histologically characterized by the presence of large, undifferentiated cells that lack distinctive features of either squamous cell carcinoma or adenocarcinoma (other types of cancers).
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).
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.
Another important cell type is the pulmonary neuroendocrine cell. These are innervated cells that only make up around 0.5% of the respiratory epithelial cells. [7] The ciliated cells are columnar epithelial cells with specialized ciliary modifications. The ciliated cells make up between 50 and 80 per cent of the epithelium. [8]
BerEp4 has a high sensitivity and specificity in being positive only in BCC cells. [1] BerEp4 is normally negative in squamous epithelium and mesothelium, but otherwise normally positive most epithelial cells of the body. [3] It can also help in distinguishing pulmonary adenocarcinoma (positive BerEp4) from mesothelioma (generally negative BerEp4).