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. 2019 Jul 10;6(7):e00132. doi: 10.14309/crj.0000000000000132

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© 2019 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Figure 2. — Resected rectosigmoid lesion with immunostain showing (A) CK7 positive, (B) CK20 negative, and (C) CDX2 negative. CDX2, caudal-type homeobox transcription factor 2; CK7, cytokeratin 7; CK20, cytokeratin 20.