Case Report
Two Cases of Small Cell Carcinoma of the Gallbladder
| Immunohistochemical stains | Tumor response to stain |
| Synaptophysin | Positive | Chromogranin | Positive | CD56 | Positive | CD57 | Positive | Cytokeratin AE1/AE3 | Negative | TTF1 | Negative | CD45 | Negative | Ki-67 | Positive (90% Tumor cells) |
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