Low Grade Vulvar Squamous Intraepithelial Lesion

**Semantic type:** Neoplastic Process

**Definition:** An intraepithelial lesion of the vulvar squamous epithelium associated with HPV infection. It is characterized by mild cytologic atypia.

**Synonyms:** - Grade 1 VIN - Grade 1 Vulvar Intraepithelial Neoplasia - Grade I VIN - Grade I Vulvar Intraepithelial Neoplasia - Intraepithelial Neoplasia of Vulva Grade 1 - Intraepithelial Neoplasia of the Vulva Grade 1 - Low Grade VIN - Low Grade Vulvar Intraepithelial Neoplasia - VIN 1 - VIN 1 of Usual Type - VIN Grade 1 - Vulva Intraepithelial Neoplasia Grade 1 - Vulvar Flat Condyloma - Vulvar Intraepithelial Neoplasia 1 of Usual Type - Vulvar Intraepithelial Neoplasia Grade 1 - Vulvar LSIL - Vulvar Low Grade Squamous Intraepithelial Lesion - Vulvar Low-Grade Squamous Intraepithelial Lesion - Vulvar Mild Squamous Dysplasia