Fig. 4From: Metastatic colorectal adenocarcinoma in a 76-year old male: a pitfall in the diagnosis for unclassified renal cell carcinomaImmunohistochemical studies performed in the reported case, demonstrating strong positivity for CK20 and CDX2 and negativity for CK7, CK5, p63, GATA3, PAX8, vimentin and CD117Back to article page