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Cervical cancer staging is the assessment of cervical cancer to decide how far the disease has progressed. Cancer staging generally runs from stage 0, which is pre-cancerous or non-invasive, to stage 4, in which the cancer has spread throughout a significant part of the body. As a general rule, Stage 0 is easily cured and Stage 4 is incurable. Cervical cancer is staged by the International Federation of Gynecology and Obstetrics (FIGO) staging system, which is based on clinical examination, rather than surgical findings. It allows only the following diagnostic tests to be used in determining the stage: palpation (feeling with the fingers), inspection, colposcopy, endocervical curettage, hysteroscopy, cystoscopy, proctoscopy, intravenous urography, and X-ray examination of the lungs and skeleton, and cervical conization. ==Stages== ;Stage 0: The carcinoma is confined to the surface layer (cells lining) of the cervix. Also called carcinoma ''in situ'' (CIS). ;Stage I: The carcinoma has grown deeper into the cervix, but has not spread beyond it (extension to the corpus would be disregarded). Stage One is subdivided as follows: ::IA 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cervical cancer staging」の詳細全文を読む スポンサード リンク
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