What does mitotic activity mean?
Listen to pronunciation. (my-TAH-tik ak-TIH-vih-tee) Having to do with the presence of dividing (proliferating) cells. Cancer tissue generally has more mitotic activity than normal tissues.
What is a high mitotic index?
An elevated mitotic index indicates more cells are dividing. In cancer cells, the mitotic index may be elevated compared to normal growth of tissues or cellular repair of the site of an injury.
What does brisk mitotic activity mean?
TILs are termed brisk if they infiltrate the entire invasive component diffusely or across the base of the VGP. TILs are reported as absent if no lymphocytes are present or if they are present but do not infiltrate the tumor.
Why would mitosis be happening at the tip of the root?
In the tip of the root, the reason there is higher rate of mitotic cell division in this part is the fact that it is a rapidly growing part and requires cell proliferation through rapid division for growth.
What is the meaning of mitotic?
: of, relating to, involving, or occurring by cellular mitosis mitotic cell division mitotic recombination Microtubules move material through the cell and, in particular, form an important component of the mitotic spindle, which is a structure that separates the duplicated sets of chromosomes in the course of cell …
What is considered a high mitotic rate in melanoma?
Melanomas with very high mitotic activity (≥10 mitoses/mm2) were predominantly thick and ulcerated nodular tumor subtypes. Conversely, the superficial spreading melanoma subtype, features of regression, and the presence of preexisting nevi were found to be characteristic of lesions with sparse mitotic activity.
What is the average mitotic index?
Labelling and mitotic indices were studied in the epidermis of twenty-eight young men. A mean labelling index of 5.5% was found from the whole study and a mean mitotic index of 0.06%. Mitotic index particularly was extremely variable; indices between 0.002 and 0.438% were found in individual biopsies.
What is mitotic index and its significance?
The mitotic index (percentage of cells in mitosis at any time) provides a measure of the capacity of cells to divide and of the rate of cell division. It is used to identify the sites of growth within a tissue and to determine which cell types are dividing.