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KMID : 0359320200600020101
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Korean Journal of Veterinary Research
2020 Volume.60 No. 2 p.101 ~ p.104
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Carcinoid tumor of gallbladder in a dog
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Woo Sang-Ho
Go Du-Min
Cheon Doo-Sung
Kim Jae-Hoon
Choi Gab-Chol
Oh Ye-In
Kim Dae-Yong
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Abstract
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A 7-year-old female mixed-breed dog was presented to a veterinary clinic for pyometra. During abdominal ultrasonography, an abnormal finding was noted in the gallbladder. A cholecystectomy was performed. Grossly, the gallbladder wall was thickened with a polypoid nodular projection into the lumen. icroscopically, the polyp consisted of a solid sheet of round to polygonal-shaped cells that formed small packets with fibrovascular septa. The neoplastic cells contained abundant cytoplasmic eosinophilic granules. Immunohistochemically, the neoplastic cells were positive to chromogranin A and neuron-specific enolase, whereas they were negative to vimentin and cytokeratin. This case was diagnosed as a primary gallbladder carcinoid tumor.
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KEYWORD
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dog, gallbladder, tumor, carcinoid, neuroendocrine
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