vulvar carcinoma in situListen to pronunciation(VUL-ver KAR-sih-NOH-muh in SY-too)Abnormal cells are found on the surface of the vulvar skin. These abnormal cells may become cancer and spread into nearby tissue. Also called VIN and vulvar intraepithelial neoplasia.More InformationVulvar Cancer TreatmentSearch NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#