Table 1: Comparison of 1988 and 2010 surgical staging system for endometrial cancer.

Extent of tumor involvement1988 staging2010 staging

Endometrium only1AIA
Myometrium < 1/2IBIA
Myometrium > 1/2ICIB
Cervix mucosaIIA
Cervix stromaIIBII
Uterine serosa/adnexaIIIAIIIA
Vagina/parametrialIIIBIIIB
Positive lymph nodes pelvicIIICIIIC1
Positive lymph nodes periaorticIIICIIIC2
Bladder or bowel mucosaIVAIVA
Distant metastasesIVBIVB