Cervical dysplasia
Alternate Names : Cervical intraepithelial neoplasia (CIN), Precancerous changes of the cervix
Definition
Cervical dysplasia is the abnormal appearance of cells on the surface of the cervix when they are looked at underneath a microscope. Although this is not cancer, it is considered a precancerous condition. Dysplasia that is seen on a Pap smear is described using the term squamous intraepithelial lesion (SIL). These changes may be graded as: - Low-grade (LSIL)
- High-grade (HSIL)
- Possibly cancerous (malignant)
Dysplasia that is seen on a biopsy of the cervix uses the term cervical intraepithelial neoplasia (CIN), and is grouped into three categories: - CIN I -- mild dysplasia
- CIN II -- moderate to marked dysplasia
- CIN III -- severe dysplasia to carcinoma in situ
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