Fig. 4
From: A rare case of esophageal metastasis from signet-ring cell carcinoma of the cecum
Hematoxylin–eosin and immunohistochemical staining results (high magnification images) of the resected specimen of the colon tumor. a Hematoxylin–eosin staining. b Negative cytokeratin 7 (CK7) staining. c Positive cytokeratin 20 (CK20) staining. d Positive caudal-type homeobox 2 (CDX2) staining. This CK7−/CK20 + /CDX2 + staining pattern is consistent with the staining pattern of signet-ring cell carcinoma of the colon