Unusual Case of Gallbladder Adenocarcinoma Metastasis to the Abdominal Wall 11 Years Later: Synchronous Presentation with Two Malignant Colon Tumors, Coincidence or Not?

Figure 6

(a, b) Gallbladder with foci of epithelial dysplasia and carcinoma in situ. (c–f) Epithelial neoplastic proliferation composed of cystic structures lined by a layer of columnar or cubic cells, with formation of micropapillae and mild-moderate atypia. In the immunohistochemical study, these cells express CK7 diffusely and CK20 focally.

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