Table 1.
FIGO Staging of cervical cancer.
| Stage | Description |
|---|---|
| I | The carcinoma is strictly confined to the cervix (extension to the uterine corpus should be disregarded) |
| IA | Invasive carcinoma that can be diagnosed only by microscopy, with maximum depth of invasion <5 mm |
| IA1 | Measured stromal invasion depth of <3 mm |
| IA2 | Measured stromal invasion depth 23 mm and <5 mm |
| IB | Invasive carcinoma with measured deepest invasion of 25 mm (greater than Stage IA), lesion limited to the cervix uteri |
| IB1 | Invasive carcinoma with measured deepest stromal invasion of 25 mm, and greatest dimension of <2 cm |
| IB2 | Invasive carcinoma with greatest dimension of 22 cm and <4 cm |
| IB3 | Invasive carcinoma with greatest dimension of >4 cm |
| IB | Invasive carcinoma with measured deepest invasion of 25 mm (greater than Stage IA), lesion limited to the cervix uteri |
| IB1 | Invasive carcinoma with measured deepest stromal invasion of 25 mm, and greatest dimension of <2 cm |
| IB2 | Invasive carcinoma with greatest dimension of 22 cm and <4 cm |
| IB3 | Invasive carcinoma with greatest dimension of >4 cm |
| II | The carcinoma invades beyond the uterus, but has not extended into the lower third of the vagina or to the pelvic wall |
| IIA | A Involvement limited to the upper two-thirds of the vagina without parametrial invasion |
| IIA1 | Invasive carcinoma with greatest dimension of <4 cm |
| IIA2 | Invasive carcinoma with greatest dimension of ≥4 cm |
| IIB | With parametrial involvement but not up to the pelvic wall |
| III | The carcinoma invades beyond the uterus, but has not extended into the lower third of the vagina or to the pelvic wall |
| IIIA | T3 III T3a A The carcinoma involves the lower third of the vagina, with no extension to the pelvic wall |
| IIIB | Extension to the pelvic wall and/or hydronephrosis or nonfunctioning kidney (unless known to be due to another cause) |
| IIIC | Involvement of pelvic and/or para-aortic lymph nodes, irrespective of tumor size and extent (with r and p notations) |
| IIIC1 | Pelvic lymph node metastasis only |
| IIIC2 | Para-aortic lymph nodes metastasis |
| IV | The carcinoma has extended beyond the true pelvis or has involved (biopsy proven) the mucosa of the bladder or rectum (the presence of bullous edema is not sufficient to classify a case as Stage IV) |
| IVA | Spread to adjacent pelvic organs |
| IVB | Spread to distant organs |