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. 2008 Dec 26;1(4):217–220. doi: 10.3342/ceo.2008.1.4.217

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Copyright © 2008 Korean Society of Otorhinolaryngology-Head and Neck Surgery

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2 — Pathologic pictures. (A) Low power view with overlying intact mucosa (hematoxylin-eosin [H&E], magnification ×20). (B) High-power view showing pseudogland and rodget arrangement as a neuroendocrine differentiation (H&E, magnification ×200). (C) Cord and trabecular arrangement with nuclear and cellular pleomorphism (H&E, magnification ×200). (D) Tumor necrosis area (arrow) (H&E, magnification ×200). (E) Positive immunoreaction to chromogranin (magnification ×200). (F) Positive immunoreaction to synaptophysin (magnification ×200).