What does grade mean in cancer?
A cancer’s grade describes how abnormal the cancer cells and tissue look under a microscope when compared to healthy cells. Cancer cells that look and organize most like healthy cells and tissue are low grade tumors. Doctors describe these cancers as being well differentiated.
What is the grade of a tumor?
Tumor grade is the description of a tumor based on how abnormal the tumor cells and the tumor tissue look under a microscope. It is an indicator of how quickly a tumor is likely to grow and spread.
What is CIN 2 and CIN3?
CIN2 – indicates moderate changes; affecting two-thirds of the thickness of the surface layer of the cervix. CIN3 – indicates more severe changes (not cancer); affecting the full thickness of the surface layer of the cervix. Even with CIN2 or CIN3 grade changes, the cell changes are unlikely to be cancer.
What CIN means?
Cervical intraepithelial neoplasia
Cervical intraepithelial neoplasia (CIN) is a precancerous condition in which abnormal cells grow on the surface of the cervix. The cervix is the opening between the vagina and the uterus in women. “Intraepithelial” means that the abnormal cells are present on the surface (epithelial tissue) of the cervix.
What does low grade neoplasia ( CIN ) 1 mean?
Low-grade neoplasia (CIN 1) refers to dysplasia that involves about one-third of the thickness of the epithelium. CIN 2 refers to abnormal changes in about one-third to two-thirds of the epithelial layer.
Which is the most severe form of low grade neoplasia?
Low-grade neoplasia (CIN 1) refers to dysplasia that involves about one-third of the thickness of the epithelium. CIN 2 refers to abnormal changes in about one-third to two-thirds of the epithelial layer. CIN 3 (the most severe form) describes a condition that affects more than two-thirds of the epithelium. How common is CIN?
How is cervical intraepithelial neoplasia ( CIN ) 1 classified?
Cervical intraepithelial neoplasia may be classified according to how much epithelial tissue is affected: Low-grade neoplasia (CIN 1) refers to dysplasia that involves about one-third of the thickness of the epithelium.
What does the term intraepithelial neoplasia mean?
“Intraepithelial” means that the abnormal cells are present on the surface (epithelial tissue) of the cervix. The word “neoplasia” refers to the growth of new cells. Another name for CIN is cervical dysplasia.