vulvar intraepithelial neoplasia

Vulvar intraepithelial neoplasia (VIN) is a general term for noncancerous but abnormal changes in the squamous cells that cover the surface of the vulva. The word “intraepithelial” means that the abnormal cells are confined to the top layer of the vulvar skin (the epidermis) and have not grown into the deeper tissue. VIN is not …
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