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Fig. 1 | Diagnostic Pathology

Fig. 1

From: Liver metastatic basaloid squamous cell carcinoma with negative expression of pancytokeratin: a case report and literature review

Fig. 1

Pathological findings of the liver tumor. a The hepatic tumor was composed of monotonous epithelioid cells (hematoxylin and eosin [H&E], 40×). b (H&E, 40×) and c (H&E, 200×) The tumor cells were closely arranged with solid and pseudoadenoid structures. d Tumor necrosis was obvious (H&E, 200×). e and f The tumor cells were round or ovoid, with hyperchromatic nuclei, scant basophilic cytoplasm, and increased mitotic activity (H&E, 400×). Immunohistochemical staining showed that the tumor cells were negative for AE1/AE3 (g), CK18 (h), CK7 (i), Hep Par-1 (j), and CD56 (k). The Ki-67 index was 80% (l) (40×)

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