Cervix Cancer
Stage
- Stage 0 - full-thickness involvement of the epithelium without invasion into the stroma (carcinoma in situ)
- Stage I - limited to the uterus
- IA - diagnosed only by microscopy; no visible lesions
- IA1 - stromal invasion less than 3 mm in depth and 7 mm or less in horizontal spread
- IA2 - stromal invasion between 3 and 5 mm with horizontal spread of 7 mm or less
- IB - visible lesion or a microscopic lesion with more than 5 mm of depth or horizontal spread of more than 7 mm
- IB1 - visible lesion 4 cm or less in greatest dimension
- IB2 - visible lesion more than 4 cm
- Stage II - invades beyond uterus
- IIA - without parametrial invasion
- IIB - with parametrial invasion
- Stage III - extends to pelvic wall or lower ⅓ of the vagina
- IIIA - involves lower ⅓ of vagina
- IIIB - extends to pelvic wall and/or causes hydronephrosis or non-functioning kidney
- IVA - invades mucosa of bladder or rectum and/or extends beyond true pelvis
- IVB - distant metastasis
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