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  2. Precancerous condition - Wikipedia

    en.wikipedia.org/wiki/Precancerous_condition

    Premalignant lesions are morphologically atypical tissue which appear abnormal when viewed under the microscope, and which are more likely to progress to cancer than normal tissue. [7] Precancerous conditions and lesions affect a variety of organ systems, including the skin, oral cavity, stomach, colon, lung, and hematological system.

  3. Carcinoma in situ - Wikipedia

    en.wikipedia.org/wiki/Carcinoma_in_situ

    [4] [5] The term "pre-cancer" has also been used. These abnormal cells grow in their normal place, thus in situ ( Latin for 'in its place'). For example, carcinoma in situ of the skin, also called Bowen's disease , is the accumulation of dysplastic epidermal cells within the epidermis only, that has failed to penetrate into the deeper dermis.

  4. Ductal carcinoma in situ - Wikipedia

    en.wikipedia.org/wiki/Ductal_carcinoma_in_situ

    Ductal carcinoma in situ (DCIS), also known as intraductal carcinoma, is a pre-cancerous or non-invasive cancerous lesion of the breast. [1] [2] DCIS is classified as Stage 0. [3] It rarely produces symptoms or a breast lump that can be felt, typically being detected through screening mammography.

  5. Dysplasia - Wikipedia

    en.wikipedia.org/wiki/Dysplasia

    In one of the modern histopathological senses of the term, dysplasia is sometimes differentiated from other categories of tissue change including hyperplasia, metaplasia, and neoplasia, and dysplasias are thus generally not cancerous. An exception is that the myelodysplasias include a range of benign, precancerous, and cancerous forms. Various ...

  6. Adenoma - Wikipedia

    en.wikipedia.org/wiki/Adenoma

    Some adenomas grow from epithelial tissue in nonglandular areas but express glandular tissue structure (as can happen in familial polyposis coli). Although adenomas are benign , they should be treated as pre-cancerous.

  7. Benign tumor - Wikipedia

    en.wikipedia.org/wiki/Benign_tumor

    The cells in tubular adenomas, like most tumors that frequently progress to cancer, show certain abnormalities of cell maturation and appearance collectively known as dysplasia. These cellular abnormalities are not seen in benign tumors that rarely or never turn cancerous, but are seen in other pre-cancerous tissue abnormalities which do not ...

  8. Epstein–Barr virus–associated lymphoproliferative diseases

    en.wikipedia.org/wiki/Epstein–Barr_virus...

    This causes the infected cells to divide excessively, and is associated with the development of various non-cancerous, pre-cancerous, and cancerous lymphoproliferative disorders (LPDs). These LPDs include the well-known disorder occurring during the initial infection with the EBV, infectious mononucleosis , and the large number of subsequent ...

  9. Leukoplakia - Wikipedia

    en.wikipedia.org/wiki/Leukoplakia

    It is a precancerous lesion, a tissue alteration in which cancer is more likely to develop. [4] The chance of cancer formation depends on the type, with between 3–15% of localized leukoplakia and 70–100% of proliferative leukoplakia developing into squamous cell carcinoma. [4]