PMCH and cancer: Regarding the TNM classification of malignant tumors, tumor expansion (T0–T3 values) was positively correlated with histopathological grade (Spearman, r = 0.2659, p = 0.0418), cancer stage (r = 0.6111, p < 0.0001), RDW (r = 0.2495, p = 0.0487), and PLT (r = 0.2654, p = 0.0355), but in negative correlation with MCV (r = −0.383, p = 0.0019) and MCH (r = −0.3626, p = 0.0035) in the examined colorectal adenocarcinoma.