Fig. 1
From: Liver failure as the initial presentation in cancer of unknown primary: a case report
Ascites cytology and bone marrow biopsy histopathology. (A) Hematoxylin and eosin staining of ascites showed cancer cells (hematoxylin and eosin ×400). Positive immunocytochemical staining for BER-P4(+) (B), claudin-4(+), TTF1(+), CK7(+). (C) Bone marrow biopsy showed normal bone marrow structure and few tumor cells, suggesting a metastatic poorly differentiated adenocarcinoma (hematoxylin and eosin ×600). Positive immunohistochemistry staining for TTF-1 (D), PCK (+), CK7(+), Napsin A(+) and Cyclin D1(+)