CA9 and endometrial cancer: According to GLUT-1 and CAIX expression, the statistical analyses did not reveal any significant differences in these proteins expression and FIGO clinical stage, histological grade (G), the Bokhman subtypes of endometrial cancer, lymph node involvement (N), distant metastases (M), deep myometrial invasion (≥50%), cervical involvement, involvement of adnexa, and recurrence (Tables 3-4).