Preoperative platelet morphology parameters as prognostic predictors for endometrial malignant carcinoma stage and progesterone receptor

To investigate preoperative platelet morphology parameters and other whole blood cells in patients of malignant endometrial carcinoma compared with benign disease. Retrospective analysis was performed through collecting patients' hematological parameters before performing total abdominal/vaginal hysterectomy and standard radical surgery due to benign and malignant endometrial disease between 2006 and 2017. Parameters required included white blood cell (WBC), hemoglobin, platelet count (PLT), platelet distribution width (PDW), mean platelet volume (MPV), and platelet thrombocytocrit (PCT). And neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) were calculated. For malignant carcinoma, Ki-67 percentage and progesterone receptor (PR) status were further collected. A total of 288 patients were included with 145 benign cases and 143 malignant cases. Patients of confirmed endometrial carcinoma showed a significant lower value of PDW (55.21 +/- 4.72 vs 49.54 +/- 5.89, P < .001), meanwhile significant higher values of MPV (7.12 +/- 1.56 vs 8.89 +/- 1.67, P < .001) and PCT (24.18 +/- 6.89 vs 27.93 +/- 8.93, P = .003). Further analysis of endometrial carcinoma patients showed that no significant difference in platelet parameters was found between patients with stage I to II and stage III to IV (P > .05), while increased value in PDW and reduced value in MPV was found in PR negative compared with positive patients. Preoperative platelet morphology parameters seemed to be used as one kind of predictive factors to discriminate malignant and benign endometrial disease. Limited by present study design, further prospective studies are required to support this finding.