What does situ mean in cancer?
(in SY-too) In its original place. For example, in carcinoma in situ, abnormal cells are found only in the place where they first formed. They have not spread.
What stage is cancer in situ?
Stage 0. This stage describes cancer in situ. In situ means “in place.” Stage 0 cancers are still located in the place they started. They have not spread to nearby tissues.
Is carcinoma in situ a cancer?
In general, carcinoma in situ is the earliest form of cancer, and is considered stage 0. An example of carcinoma in situ is ductal carcinoma in situ, or DCIS, which is considered an early form of breast cancer and occurs when abnormal cells form a breast’s milk duct.
Does carcinoma in situ spread?
A group of abnormal cells that remain in the place where they first formed. They have not spread. These abnormal cells may become cancer and spread into nearby normal tissue.
What is a reportable list?
The reportable list identifies malignancies with a behavior code (fifth digit) of 2 or 3 as identified in the International Classification of Diseases for Oncology, 3rd edition (ICD-O-3).
What does melanoma in situ mean?
Melanoma in situ is also called stage 0 melanoma. It means there are cancer cells in the top layer of skin (the epidermis). The melanoma cells are all contained in the area in which they started to develop and have not grown into deeper layers of the skin.
What is comedo carcinoma of the breast?
Comedo carcinoma of the breast is actually a type of ductal carcinoma in situ. It is considered to be an early stage of breast cancer, and it is characterized by the presence of central necrosis, or evidence of cell death and decay.
What does comedocarcinoma look like?
Comedocarcinoma. Intraductal solid carcinoma in which the lactiferous ducts are filled with a yellow pastelike material that looks like small plugs (comedones) when sectioned is called comedocarcinoma. Histologically, the ducts are filled with plugs of an epithelial tumor that have a central necrosis, giving rise to the pastelike material.
What does comedo DCIS show in comedo carcinoma?
Comedo DCIS usually shows small groups of ‘dead cells’ What typically happens in a breast comedo carcinoma is that some of the cells die off and form small groups. (These small groups of dead cells are termed ‘comedo necrosis‘).
What happens to dead cells in a breast comedo carcinoma?
What typically happens in a breast comedo carcinoma is that some of the cells die off and form small groups. ( These small groups of dead cells are termed ‘comedo necrosis‘ ).