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HPV Caused Cervical Cancer

Dr. Ir. Sreenivas Reddy Bathula, B.E. Rangaswamy, P.S. Sharada


The causative role of human papillomavirus (HPV) in all cancers of the uterine cervix has been firmly recognized biologically and epidemiologically. Most cancers of the vagina and anus are likewise caused by HPV, as are a fraction of cancers of the vulva, penis, and oropharynx. HPV-16 and -18 account for about 70% of cancers of the cervix, vagina, and anus and for about 30–40% of cancers of the vulva, penis, and oropharynx. Other cancers causally linked to HPV are non-melanoma skin cancer and cancer of the conjunctiva.
Although HPV is a necessary cause of cervical cancer, it is not enough cause. Thus, other cofactors are necessary for development from cervical HPV infection to cancer. Long-term use of hormonal contraceptives, high parity, tobacco smoking, and co-infection with HIV have been identified as established cofactors; co-infection with Chlamydia trachomatis (CT) and herpes simplex virus type-2 (HSV-2), immunosuppression, and certain dietary deficiencies are other probable cofactors. Genetic and immunological host factors and viral factors other than type, such as variants of type, viral load and viral integration, are likely to be important but have not been clearly identified[1].

Keywords: uterine cervix, oropharynx, conjunctiva, Chlamydia trachomatis, non-melanoma skin cancer.

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