Significance of stem cell marker Lgr5 expression in colorectal carcinogenesis Value of CD34 and CD10 immunostaining in the differentiation between basal cell carcinoma and trichoepithelioma Prognostic value of CD44 and Her2/neu in invasive transitional cell carcinoma of the urinary bladder Value of p53, ki-67 and CD10 in differentiation between keratoacanthoma and squamous cell carcinoma Evaluation of galectin-3, β-catenin, and nuclear morphometry in different thyroid lesions Differential expression of p16 INK4aprotein and S100A4 protein in gastric carcinoma. Assessment of Carcinoembryonic Antigen-Related Cell Adhesion Molecules (CEACAM6) in pancreatic ductal adenocarcinoma, a combined serum and immunohistochemical study Combined serum and immunohistochemical differentiation between reactive, and malignant mesothelial proliferations Significance of tumoral and stromal ALDH 1A1 expression in breast invasive duct carcinoma in Egyptian female patients Relation of autophagy to apoptosis and progesterone receptor expression in endometrial carcinoma type I Evaluation of Cancer-Associated Fibroblasts Markers in Hepatocellular Carcinoma Hepatic expression of programmed death-1 (PD-1) and its ligand, PD-L1, in children with autoimmune hepatitis: relation to treatment response Significance of BRAF and Nrf2 in evaluation of serous ovarian tumors EVALUATION O F THE ROLE OF TIGHT JUNCTION MOLECULES; CLAUDIN-1 AND CLAUDIN-4 IN UROTHELIAL NEOPLASMS Evaluation of the Expression and Role of Adenosine Receptor (A2aR) and PDL-1 in Bladder Urothelial Carcinoma Studying the role of IMP3 and P53 in detection of dysplastic changes in Barrett's esophagus