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PHL 472 Chemical Carcinogens

Carcinogenesis, Definitions

Sophia
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PHL 472 Chemical Carcinogens

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    1. PHL 472 Chemical Carcinogens

    2. and hyperplasia Heritably = genetically. Relative autonomy of neopl. Cells reflects their abnormal regn of gene exn Hyperplasia - Hyperplasia is an increase in the number of cells in an organ or tissue which occurs in response to a stimulus and which ceases when the stimulus is removed. hyperplasia can produce tumor-like tissue masses; e.g., the enlarged lymph nodes seen in some viral infections may be grossly indistinguishable from those seen in lymphoma. These tumors differ from those seen in neoplasia in that the enlargement ceases when the stimulus (e.g., the infection) is withdrawn and hyperplasia Heritably = genetically. Relative autonomy of neopl. Cells reflects their abnormal regn of gene exn Hyperplasia - Hyperplasia is an increase in the number of cells in an organ or tissue which occurs in response to a stimulus and which ceases when the stimulus is removed. hyperplasia can produce tumor-like tissue masses; e.g., the enlarged lymph nodes seen in some viral infections may be grossly indistinguishable from those seen in lymphoma. These tumors differ from those seen in neoplasia in that the enlargement ceases when the stimulus (e.g., the infection) is withdrawn

    3. Carcinoma-in-situ: an intraepithelial malignancy in which malignant cells involve the entire thickness of the epithelium without penetration of the basement membrane. Carcinoma-in-situ: an intraepithelial malignancy in which malignant cells involve the entire thickness of the epithelium without penetration of the basement membrane.

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