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  2. Epithelial dysplasia - Wikipedia

    en.wikipedia.org/wiki/Epithelial_dysplasia

    Individual cell keratinization; Loss or reduction of cellular cohesion; Cellular pleomorphism; Loss of basal cell polarity; Koilocytosis; Epithelial cell dysplasia is divided into three categories of severity: mild, moderate, and severe. Epithelial dysplasia becomes microinvasive squamous cell carcinoma once the tumor begins to invade nearby ...

  3. Histopathology of colorectal adenocarcinoma - Wikipedia

    en.wikipedia.org/wiki/Histopathology_of...

    Adenocarcinoma is a malignant epithelial tumor, originating from superficial glandular epithelial cells lining the colon and rectum. It invades the wall, infiltrating the muscularis mucosae layer, the submucosa, and then the muscularis propria. Tumor cells describe irregular tubular structures, harboring pluristratification, multiple lumens ...

  4. Vasculogenic mimicry - Wikipedia

    en.wikipedia.org/wiki/Vasculogenic_mimicry

    When cells undergo EMT, they lose their polarity, ability to adhere to neighboring cells, and the tight contacts as result of losing expression of epithelial cell markers such as E-cadherin. Cells that have taken on mesenchymal properties are non-adherent, and thus promote invasion into nearby tissues.

  5. Epithelial polarity - Wikipedia

    en.wikipedia.org/wiki/Epithelial_polarity

    Epithelial polarity is one example of the cell polarity that is a fundamental feature of many types of cells. Epithelial cells feature distinct 'apical', 'lateral' and 'basal' plasma membrane domains. Epithelial cells connect to one another via their lateral membranes to form epithelial sheets that line cavities and surfaces throughout the ...

  6. High-grade serous carcinoma - Wikipedia

    en.wikipedia.org/wiki/High-grade_serous_carcinoma

    High-grade serous carcinoma (HGSC) is a type of tumour that arises from the serous epithelial layer in the abdominopelvic cavity and is mainly found in the ovary.HGSCs make up the majority of ovarian cancer cases [1] and have the lowest survival rates. [2]

  7. Cell polarity - Wikipedia

    en.wikipedia.org/wiki/Cell_polarity

    Epithelial cells also exhibit planar cell polarity, in which specialized structures are orientated within the plane of the epithelial sheet. Some examples of planar cell polarity include the scales of fish being oriented in the same direction and similarly the feathers of birds, the fur of mammals, and the cuticular projections (sensory hairs ...

  8. High-grade prostatic intraepithelial neoplasia - Wikipedia

    en.wikipedia.org/wiki/High-grade_prostatic...

    The latter can be demonstrated with special staining techniques (immunohistochemistry for cytokeratins) to identify the basal cells forming the supporting layer of the acinus. In prostate cancer, the abnormal cells spread beyond the boundaries of the acinus and form clusters without basal cells. In HGPIN, the basal cell layer is disrupted but ...

  9. Epithelioma - Wikipedia

    en.wikipedia.org/wiki/Epithelioma

    The prognosis varies dramatically, depending on the type and stage at the time of treatment. However, the most common epitheliomas are very easily treated and rarely result in death. [ 2 ] The condition did, however, take the life of Scottish golfer Willie Dunn, Sr. in 1878 at a time when the ailment was likely not fully understood.

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