Table 5.

Histological grading [as stated in the AJCC Cancer Staging Manual, 7^th ed (46), NCCN 1.2024 (44) and Sanchez et al., 2022 (45)].

Histological Grading (G)
GX	Grade cannot be assessed
G1	Well-differentiated
G2	Moderately differentiated
G3	Poorly or undifferentiated differentiated