CD83 and colorectal cancer: Dendritic cells play a key role in the antigen presentation and T cell activation.The aim of this study was a detailed analysis of the presence of mature dendritic cells (CD 83 positive) in colorectal cancer in correlation with selected clinicopathological parameters.The presence of mature dendritic cells (mDCs) was determined immunohistochemically usingthe anti-CD83 antibody.