PMC5742440_01
H&E staining viewed under x40 showing a bladder carcinoma composed of mucinous and signet-ring cell components, showing nests of columnar cells and signet-ring cells floating in pools of extracellular mucin.
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fig1
Histopathological evaluation revealed a primary bladder carcinoma composed of mucinous and signet-ring cell components, showing nests of columnar cells and signet-ring cells floating in pools of extracellular mucin (Figure 1).
Immunohistochemical analysis with Cytokeratin 7 under x40 showing focal cytoplasmic positivity.
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fig2
Furthermore, immunohistochemical analyses showed focal cytoplasmic positivity for Cytokeratin 7 (Figure 2) and Cytokeratin 20 in tumour cells.