Table 3. Extent of lymphadenectomy for presumed stage I disease.
| Scenario | 3A* | 3B† | 3C‡ |
|---|---|---|---|
| Preopative biopsy results (grade) | 1 | 1 | 3 |
| Preopative MRI results (myometrial invasion) | Less than half | More than half | More than half |
| Extent of surgery (%) | |||
| SH/BSO | 19.8 | 0 | 0 |
| SH/BSO+sentinel biopsy | 6.6 | 2.9 | 1.9 |
| SH/BSO+selective lymphadenectomy with frozen results | 15.1 | 3.9 | 1.0 |
| SH/BSO+PLND | 31.1 | 21.4 | 10.7 |
| SH/BSO+PLND/PALND (up to IMA level) | 15.1 | 35.0 | 34.0 |
| SH/BSO+PLND/PALND (up to renal vein level) | 12.3 | 36.9 | 52.4 |
BSO, bilateral salpingo-oophorectomy; IMA, inferior mesenteric artery; MRI, magnetic resonance imaging; PALND; para-aortic lymph node dissection; PLND, pelvic lymph node dissection; SH, simple hysterectomy.
*3A, presumed stage IA/grade 1 endometrial cancer. †3B, presumed stage IB/grade 1 endometrial cancer. ‡3C, presumed stage IB/grade 3 endometrial cancer.