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. 2013 Nov 13;1(2):66–71. doi: 10.1002/ccr3.26

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© 2013 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Medium magnification image showing tumor cells after immunohistochemical staining with antibody directed against polyclonal carcinoembryonic antigen (pCEA) with distinct canalicular pattern in some cells (pCEA, 400×).