Our expert says:
What we call CIN 3 is a high grade squamous intraepithelial lesion and can be considered as a Carcinoma in situ. This means that there is no invasion of the basement membrane of the squamous epithelium and therefore it has no metastatic potential. In other words it cannot spread and if completely excised you are cured. So in other words nothing to worry about. It is however still important to go for regular follow up pap smears.
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