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. 2019 Mar 7;56:96–100. doi: 10.1016/j.ijscr.2019.02.043

Fig. 6.

Fig. 6

Immunohistochemistry stains; the neoplastic proliferation showed positive stain for CK AE1-AE3 and CDX2, highlighting an epithelial differentiation and likely origin from large intestine. The tumor cells showed negative stain for TTF-1, CK7, Mammoglobin, P63, neuroendocrin markers (CD56, sinaptofisina) and S100.