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Table 3 Under- and over-grading of tumors by pre-op EB versus frozen section

From: Can addition of frozen section analysis to preoperative endometrial biopsy and MRI improve identification of high-risk endometrial cancer patients?

Pre-op EB

Number (preoperative histology)

Postoperative histology

Number

%

Under-graded

19 (G1or G2)

   
  

Serous

7

36.8

  

G3

8

42.1

  

CL

2

10.5

  

CS

1

5.3

  

Others

1

5.3

Over-graded

2 (G3)

   
  

G2

2

100

Frozen section

Number (intraoperative histology)

Postoperative histology

Number

%

Under-graded

21 (G1or G2)

   
  

Serous

8

38.1

  

G3

9

42.9

  

CL

2

9.5

  

CS

2

9.5

Over-graded

1 (G3)

   
  

G2

1

100

  1. G1, G2, G3 endometrioid adenocarcinoma grade 1, 2, 3
  2. CL clear cell carcinoma
  3. S serous carcinoma
  4. CS carcinosarcoma