A<unk>  (plural<unk> s or<unk> ta) (papillo- + -oma) is a benign epithelial tumor growing exophytically (outwardly projecting) in nipple-like and often finger-like fronds. In this context, papilla refers to the projection created by the tumor, not a tumor on an already existing papilla (such as the nipple). When used without context, it frequently refers to infections (squamous cell<unk>  caused by human<unk> virus (HPV), such as warts. Human<unk> virus infection is a major cause of cervical cancer, vulvar cancer, vaginal cancer, penis cancer, anal cancer, and HPV-positive oropharyngeal cancers. Most viral warts are caused by human<unk> virus infection (HPV), of which there are nearly 200 distinct human<unk> viruses (HPVs), and many HPV types are carcinogenic. There are, however, a number of other conditions that cause<unk> , as well as many cases in which there is no known cause.
Papilloma
Mammoplasia
Nevus
Condyloma
Carcinoma
Acanthoma
Epithelial dysplasia
Trichoadenoma