What does carcinoma in situ mean?

Definitions for carcinoma in situ
car·ci·no·ma in situ

This dictionary definitions page includes all the possible meanings, example usage and translations of the word carcinoma in situ.

Princeton's WordNet

  1. carcinoma in situ, preinvasive cancernoun

    a cluster of malignant cells that has not yet invaded the deeper epithelial tissue or spread to other parts of the body

Wikipedia

  1. Carcinoma in situ

    Carcinoma in situ (CIS) is a group of abnormal cells. While they are a form of neoplasm, there is disagreement over whether CIS should be classified as cancer. This controversy also depends on the exact CIS in question (i.e. cervical, skin, breast). Some authors do not classify them as cancer, however, recognizing that they can potentially become cancer. Others classify certain types as a non-invasive form of cancer. The term "pre-cancer" has also been used. These abnormal cells grow in their normal place, thus "in situ" (from 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. For this reason, CIS will usually not form a tumor. Rather, the lesion is flat (in the skin, cervix, etc.) or follows the existing architecture of the organ (in the breast, lung, etc.). Exceptions include CIS of the colon (polyps), the bladder (preinvasive papillary cancer), or the breast (ductal carcinoma in situ or lobular carcinoma in situ). Many forms of CIS have a high probability of progression into cancer, and therefore removal may be recommended; however, progression of CIS is known to be highly variable and not all CIS becomes invasive cancer. In the TNM classification, carcinoma in situ is reported as TisN0M0 (stage 0).

ChatGPT

  1. carcinoma in situ

    Carcinoma in situ (CIS) is a term used to describe a group of abnormal cells that are localized in the place where they started and have not spread to nearby tissues. It's regarded as the earliest form of carcinoma and considered a precancerous or non-invasive condition, as it remains confined to the cells where it originated. Though "in situ" means "in place," these abnormal cells can potentially develop into invasive, cancerous cells if not treated or monitored appropriately. This term can be applied to different types of carcinomas based on the site of the cell abnormality, such as cervical, breast, or skin carcinoma in situ. The severity and treatment options depend on the type and location of the CIS.

Wikidata

  1. Carcinoma in situ

    Carcinoma in situ is an early form of cancer that is defined by the absence of invasion of tumor cells into the surrounding tissue, usually before penetration through the basement membrane. In other words, the neoplastic cells proliferate in their normal habitat, hence the name "in situ". For example, carcinoma in situ of the skin, also called Bowen's disease, is the accumulation of neoplastic epidermal cells within the epidermis only, that has failed to penetrate into the deeper dermis. For this reason, CIS will usually not form a tumor. Rather, the lesion is flat or follows the existing architecture of the organ. Some CIS, however, do form tumors, such as in the colon, in the bladder, or in the breast. Many forms of invasive carcinoma originate after progression of a CIS lesion. Therefore, CIS is considered a precursor or incipient form of cancer that may, if left untreated long enough, transform into a malignant neoplasm. When explaining a laboratory report to a patient, most doctors will refer to CIS as "pre-cancer", not cancer. However, because most forms of CIS have a high probability of progression into invasive carcinoma, doctors will usually recommend that the lesion be completely removed. Therefore, CIS is usually treated in much the same way as a malignant tumor.

U.S. National Library of Medicine

  1. Carcinoma in Situ

    A lesion with cytological characteristics associated with invasive carcinoma but the tumor cells are confined to the epithelium of origin, without invasion of the basement membrane.

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Numerology

  1. Chaldean Numerology

    The numerical value of carcinoma in situ in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of carcinoma in situ in Pythagorean Numerology is: 7


Translations for carcinoma in situ

From our Multilingual Translation Dictionary

  • سرطان في الموقعArabic

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"carcinoma in situ." Definitions.net. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.definitions.net/definition/carcinoma+in+situ>.

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