Abstract
A minute carcinoid tumor of the gallbladder is reported. The tumor was incidentally identified in a 77-year-old Japanese man with cholecystolithiasis, hepatocellular carcinoma and sigmoid colon carcinoma. The tumor formed a 5-mm-sized sessile polyp at the neck of the gallbladder. The tumor cells, which were argyrophilic and non-argentaffinic, belonged to the foregut-type. Immunohistochemically, they were positive for neuron-specific enolase (NSE) and somatostatin.
MeSH terms
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Adenocarcinoma / pathology
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Aged
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Carcinoid Tumor / chemistry
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Carcinoid Tumor / pathology*
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Carcinoma, Hepatocellular / pathology
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Cholelithiasis / pathology
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Colonic Neoplasms / pathology
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Gallbladder Neoplasms / chemistry
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Gallbladder Neoplasms / pathology*
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Humans
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Immunohistochemistry
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Liver Neoplasms / pathology
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Male
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Neoplasms, Multiple Primary / pathology*
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Phosphopyruvate Hydratase / analysis
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Somatostatin / analysis
Substances
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Somatostatin
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Phosphopyruvate Hydratase