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(A-F) Immunohistochemical profile of recurrent large bowel tumor and its small bowel metastasis for the CK7, CK20 and AMACR markers. (A and D) CK20 was strongly expressed, (B and E) CK7 was focally expressed, while (C and F) AMACR was partially expressed in recurrent large bowel tumor and its small bowel metastasis, respectively. CK, cytokeratin; AMACR, α-methylacyl coenzyme A racemase.
