NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,800 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

cervical squamous intraepithelial neoplasia 1
(SER-vih-kul SKWAY-mus IN-truh-eh-pih-THEE-lee-ul NEE-oh-PLAY-zhuh ...)
Slightly abnormal cells are found on the surface of the cervix. Cervical squamous intraepithelial neoplasia 1 is usually caused by certain types of human papillomavirus (HPV) and is found when a cervical biopsy is done. Cervical squamous intraepithelial neoplasia 1 is not cancer and usually goes away on its own without treatment. Sometimes it becomes cancer and spreads to nearby normal tissue. Cervical squamous intraepithelial neoplasia 1 is sometimes called low-grade or mild dysplasia. Also called CIN 1.