staging of cervical carcinoma
Last reviewed 01/2018
The International Federation of Obstetricians and Gynaecologists (FIGO) introduced the following system for the staging of cervical carcinoma:
Histological staging:
- 0 - CIN III (carcinoma in situ)
- IA - microinvasive carcinoma
Clinical staging:
- IB - invasive carcinoma confined to the cervix
- IIA - invasion into the upper one third of the vagina
- IIB - extension to the parametria but not to the pelvic side wall
- IIIA - extension to the lower one third of the vagina
- IIIB - extension to the pelvic side wall
- IVA - tumour involving the bladder or rectum
- IVB - extrapelvic spread, e.g. liver or lung metastases