Serial tissue sections of four different pancreatic cancer cases were subjected to immunohistochemistry and in situ hybridization analysis. A and B: Case 3, C and D: Case 10, E and F: Case 25, G and H: Case 35. A, C, E and G, immunohistochemistry: B, D, F and H, in situ hybridization analysis.
Original magnification: A-H×600