Vaginal Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** A superficial neoplastic process involving exclusively the vaginal squamous epithelium without extension to underlying tissue. It is classified as low- or high-grade intraepithelial neoplasia.

**Synonyms:** - Intraepithelial Neoplasia of Vagina - Intraepithelial Neoplasia of the Vagina - Intraepithelial Neoplasm of Vagina - Intraepithelial Neoplasm of the Vagina - Intraepithelial Tumor of Vagina - Intraepithelial Tumor of the Vagina - VAIN - Vaginal Dysplasia - Vaginal Intraepithelial Neoplasm - Vaginal Intraepithelial Tumor - Vaginal SIL - Vaginal Squamous Intraepithelial Lesion - Vaginal intraepithelial neoplasia