Definition: this is a Latin phrase that means "in place."
Some types of precancerous cells remain in one location rather than invading other tissue, and these are called in situ.
DCIS, or ductal carcinoma in situ, is diagnosed when cancer is found in a duct of the breast, and is limited to the inside of the duct, without any breakthrough into surrounding tissue. A very early detection of DCIS would have well-defined margins, since all the cancer is in situ, or all in one place.
Some types of precancerous cells remain in one location rather than invading other tissue, and these are called in situ.
DCIS, or ductal carcinoma in situ, is diagnosed when cancer is found in a duct of the breast, and is limited to the inside of the duct, without any breakthrough into surrounding tissue. A very early detection of DCIS would have well-defined margins, since all the cancer is in situ, or all in one place.
Pronunciation: in sigh-chew
Also Known As: contained
Common Misspellings: en situ
Examples: The surgeon said that the cancer was in situ, meaning that it was well-contained, and had not spread.
