Glycodelin as well as its immunosuppressive glyco-variant Glycodelin A protein was analysed and quantified in endometrial cancer tissue. Quantification of Glycodelin (Gd; A, C, E) and its immunosuppressive glyco-variant Glycodelin A (GdA; B, D, F) by immunohistochemistry is shown. Gd/GdA was visualized in endometrial carcinoma tissue of different histological subtypes (A, B), FIGO stages (C, D) or tumour grades (E, F). Gd and GdA were detected by immuno-histochemistry and quantified employing an immunoreactive score (IRS) ranging from 0 (lowest) to 12 (highest). Significant differences (p < 0.05) as determined by Mann–Whitney Test are indicated by #.