VIN has various meanings in the Common Medical category. Discover the full forms, definitions, and usage contexts of VIN in Common Medical.
Preinvasive squamous cell carcinoma (carcinoma in situ) limited to vulvar epithelium; like vaginal or cervical intraepithelial neoplasia, graded histologically on a scale from 1 to 3 or subdivided into low-grade and high-grade intraepithelial malignancy; usually related to human papilloma virus infection; may progress to invasive carcinoma.
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