Fig. 2

Comparison of tumor grading between endometrial sampling and hysterectomy specimens. A The Sankey flow diagram illustrates the distribution of tumor grading after endometrial sampling on the left side and the corresponding final grading observed in the hysterectomy specimens on the right side. The lines represent the transition of grading, with the thickness of each line indicating the number of patients. The respective gradings are color-coded as follows: Dark green: G1, Yellow: G2, Red: G3. B The table displays the percentage and number of cases for each tumor grading observed after endometrial sampling (rows) and the corresponding final grading identified in the hysterectomy specimens (columns). Cases of endometrial hyperplasia and not specified histological subtype are not reported in this graph