What is vulvar cancer? It is an abnormal growth of malignant cells (neoplasm, tumor) in the vulva. The vulva is defined as the female external genitalia, and includes the labia majora, labia minora, clitoris, and vestibule, or entryway, of the vagina. About 70% of vulvar cancers involve the labia, (mainly the labia majora), 15% - 20% involve the clitoris, and another 15% - 20% involve the perineum, which is the area of sensitive skin located between the vagina and the anus. In about 5% of cases, the cancer is present at more than one site. What are the different types of vulvar cancer? The vulva is essentially epithelial skin, and so the main tumor types that affect this area are skin-related cancers. The majority of vulvar cancers are squamous cell carcinomas, which typically develop at the edges of the labia majora/ minora or the vagina. As with vaginal squamous cell carcinomas, vulvar ... read more on Vulvar Cancer: Overview