Cervical Intraepithelial Neoplasia (CIN)
What is cervical intraepithelial neoplasia (CIN)?
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. Another name for CIN is cervical dysplasia.
What are the classifications of CIN?
Cervical intraepithelial neoplasia may be classified according to how much epithelial tissue is affected:
Low-grade neoplasia (CIN1): that involves about one-third of the thickness of the epithelium.- CIN 2: 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.
What are the symptoms of cervical intraepithelial neoplasia (CIN)?
CIN does not usually cause any symptoms. Abnormal cells are found only after a routine Pap smear.
What causes cervical intraepithelial neoplasia?
CIN usually occurs after a woman becomes infected with the human papilloma virus (HPV). This is a virus that is spread through sexual contact. In many cases, the immune system by itself will get rid of the virus. Other risk factors include:
- A woman’s age
- Smoking cigarettes
- Using immunosuppressant drugs
- Having sex with multiple partners
- Becoming sexually active before age 18
- Becoming infected with the human immunodeficiency virus (HIV)
Moderate Dysplasia
How is cervical intraepithelial neoplasia (CIN) diagnosed?
Your doctor will decide your treatments. Colposcopy guided treatment required in specialist centre.