Carcinoma in Situ: Definition, Meaning, and Examples - Verywell …
2023年11月28日 · The term carcinoma in situ is a term used to define and describe a cancer that is only present in the cells where it started and has not spread to any nearby tissues. Carcinoma in situ is the earliest stage of a cancer, and is, at this stage, considered "non-invasive."
Carcinoma in situ: What is it and how is it treated? - Medical News Today
2024年2月27日 · Carcinoma in situ is when cell changes appear cancerous under a microscope but have not spread beyond where they first formed. The words in situ mean in its...
Definition of carcinoma in situ - NCI Dictionary of Cancer Terms
Carcinoma in situ (CIS) is a group of abnormal cells that are found only in the place where they first formed in the body (see left panel). These abnormal cells may become cancer and spread to nearby normal tissue (see right panel).
Carcinoma in Situ: Stage 0 Cancer That Hasn’t Spread
2022年4月21日 · Carcinoma in situ is the earliest form of cancer, and is considered stage 0. Learn about this diagnosis, along with examples of in situ cancer types.
Cancer Staging - NCI - National Cancer Institute
Abnormal cells are present but have not spread to nearby tissue. Also called carcinoma in situ, or CIS. CIS is not cancer, but it may become cancer. Stage I, Stage II, and Stage III (may also be written as Stage 1, Stage 2, and Stage 3) Cancer is present. The higher the number, the larger the cancer tumor and the more it has spread into nearby ...
How in Situ Is Used During Surgery and Cancer Treatment
2024年3月24日 · In situ is a pathologic diagnosis made with a microscope. For the patient, cancer in situ indicates that cancer has not spread, or metastasized. This type of cancer may be referred to as Stage 0. When cancer metastasizes, it invades other nearby tissues and organs or spreads throughout the body.
Ductal carcinoma in situ (DCIS) - Symptoms and causes
2024年7月19日 · In ductal carcinoma in situ, the cancer cells are confined inside a milk duct in the breast. The cancer cells haven't spread into the breast tissue. Ductal carcinoma in situ is often shortened to DCIS. It's sometimes called noninvasive, preinvasive or stage 0 breast cancer.
Carcinoma in situ - Wikipedia
Carcinoma in situ is, by definition, a localized phenomenon, with no potential for metastasis unless it progresses into cancer. Therefore, its removal eliminates the risk of subsequent progression into a life-threatening condition.
Ductal carcinoma in situ (DCIS) - Diagnosis and treatment - Mayo Clinic
2024年7月19日 · Ductal carcinoma in situ, also called DCIS, is most often discovered during a mammogram used to screen for breast cancer. A mammogram is an X-ray of the breast tissue. If your mammogram shows something concerning, you …
Carcinoma: Types, Treatment & What it Is - Cleveland Clinic
2022年5月31日 · Cancer cells can break away from tumors and spread to other parts of your body (metastasize). Labels for carcinoma describe how much it has spread. Carcinoma in situ: The carcinoma hasn't spread. Invasive carcinoma: The carcinoma has spread to surrounding tissue close to where it formed.