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Cervical intraepithelial neoplasia
Pronunciation
Definition 1
Abnormal cells are found on the surface of the cervix. Cervical intraepithelial neoplasia is usually caused by certain types of human papillomavirus (HPV) and is found when a cervical biopsy is done. Cervical intraepithelial neoplasia is not cancer, but may become cancer and spread to nearby normal tissue. It is graded on a scale of 1 to 3, based on how abnormal the cells look under a microscope and how much of the cervical tissue is affected. For example, CIN 1 has slightly abnormal cells and is less likely to become cancer than CIN 2 or CIN 3. Also called CIN. (NCI Dictionary)
Definition 2
Squamous or glandular intraepithelial neoplasia that affects the cervical mucosal epithelium. There is no evidence of stromal invasion. According to the degree of cellular atypia and the associated architectural changes, it is classified as low or high grade. (NCI Thesaurus)
Definition 3
Growth of abnormal cells on the surface of the cervix. Numbers from 1 to 3 may be used to describe how abnormal the cells are and how much of the cervical tissue is involved. (NCI Dictionary)
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