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NCI Dictionary of Cancer Terms

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low-grade squamous intraepithelial lesion  listen  (... SKWAY-mus IN-truh-eh-pih-THEE-lee-ul LEE-zhun)

  Slightly abnormal cells are found on the surface of the cervix. Low-grade squamous intraepithelial lesion is caused by certain types of human papillomavirus (HPV) and is a common abnormal finding on a Pap test. It usually goes away on its own without treatment but sometimes the abnormal cells become cancer and spread to nearby normal tissue. Low-grade squamous intraepithelial lesion is sometimes called mild dysplasia. Also called LSIL.