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 ≤3 mm in depth |
IA2 | Measured stromal invasion >3 mm and ≤5 mm in depth |
IB | Invasive carcinoma with measured deepest invasion >5 mm (greater than Stage IA), lesion limited to the cervix uteri¶ |
IB1 | Invasive carcinoma >5 mm depth of stromal invasion, and ≤2 cm in greatest dimension |
IB2 | Invasive carcinoma >2 cm and ≤4 cm in greatest dimension |
IB3 | Invasive carcinoma >4 cm in greatest dimension |
II | The carcinoma invades beyond the uterus, but has not extended onto the lower third of the vagina or to the pelvic wall |
IIA | Involvement limited to the upper two-thirds of the vagina without parametrial involvement |
IIA1 | Invasive carcinoma ≤4 cm in greatest dimension |
IIA2 | Invasive carcinoma >4 cm in greatest dimension |
IIB | With parametrial involvement but not up to the pelvic wall |
III | The carcinoma involves the lower third of the vagina and/or extends to the pelvic wall and/or causes hydronephrosis or nonfunctioning kidney and/or involves pelvic and/or paraaortic lymph nodesΔ |
IIIA | 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 paraaortic lymph nodes (including micrometastases), irrespective of tumor size and extent (with r and p notations)Δ |
IIIC1 | Pelvic lymph node metastasis only |
IIIC2 | Paraaortic lymph node metastasis |
IV | The carcinoma has extended beyond the true pelvis or has involved (biopsy proven) the mucosa of the bladder or rectum. (A bullous edema, as such, does not permit a case to be allotted to Stage IV.) |
IVA | Spread to adjacent pelvic organs |
IVB | Spread to distant organs |