. 2024 Aug 31;26(11):2771–2782. doi: 10.1007/s12094-024-03604-3

Table 2.

A 2018 FIGO staging

Stage description
I The carcinoma is strictly confined to the cervix (extension to the corpus should be disregarded). IA Invasive carcinoma that can be diagnosed only by microscopy with maximum depth of invasion ≤5 mm^a 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 with size measured bymaximum tumor diameter^b 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 cervical 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 invasion IIA1 IIA1 Invasive carcinoma ≤4 cm in greatest dimension IIA2 Invasive carcinoma >4 cm in greatest dimension IIB With parametrial invasion 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 non-functioning kidney and/or involves pelvic and/or paraaortic lymph nodes IIIA Carcinoma involves lower third of the vagina, with no extension to the pelvic wall IIIB Extension to the pelvic wall and/or hydronephrosis or non-functioning kidney (unless known to be due to another cause) IIIC Involvement of pelvic and/or paraaortic lymph nodes (including micrometastases),^c irrespective of tumor size and extent (with r and p notations). 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 of the growth to adjacent organs IVB Spread to distant organs

Stage description

I The carcinoma is strictly confined to the cervix (extension to the corpus should be disregarded).

IA Invasive carcinoma that can be diagnosed only by microscopy with maximum depth of invasion ≤5 mm^a

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 with size measured bymaximum tumor diameter^b

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 cervical 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 invasion

IIA1 IIA1 Invasive carcinoma ≤4 cm in greatest dimension

IIA2 Invasive carcinoma >4 cm in greatest dimension

IIB With parametrial invasion 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 non-functioning kidney and/or involves pelvic and/or paraaortic lymph nodes

IIIA Carcinoma involves lower third of the vagina, with no extension to the pelvic wall

IIIB Extension to the pelvic wall and/or hydronephrosis or non-functioning kidney (unless known to be due to another cause)

IIIC Involvement of pelvic and/or paraaortic lymph nodes (including micrometastases),^c irrespective of tumor size and extent (with r and p notations).

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 of the growth to adjacent organs

IVB Spread to distant organs

^aImaging and pathology can be used, when available, to supplement clinical findings with respect to tumor size and extent, in all stages. Pathological findings supersede imaging and clinical findings

^bThe involvement of vascular/lymphatic spaces should not change the staging. The lateral extent of the lesion is no longer considered

^cIsolated tumor cells do not change the stage but their presence should be recorded