Fig. 5From: Diagnostic pitfalls: a case of prostate cancer and rectal cancer accompanied by prostate cancer invasion of the rectumH&E and immunohistochemical (IHC) staining of the tumour at the anastomotic site (magnification ✕ 200). A and B H&E staining of the tumour, and normal rectum mucosa epithelium (black arrow head). C Strong positive expression of NKX3.1 in cancer cells. D Negative for CDX-2 in cancer cellsBack to article page