Vulvar Inclusion and Epidermal Cysts (Vulvar Sebaceous Cysts) By Kilpatrick, MD, MEd, Baylor College of Medicine Reviewed / Revised Feb 2023 View Patient Education Topic Resources Vaginal Inclusion Cyst Vulvar Epidermal Inclusion... Vulvar inclusion cysts contain epithelial tissue; vulvar epidermal cysts develop from sebaceous glands.