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http://dx.doi.org/10.14405/kjvr.2020.60.2.101

Carcinoid tumor of gallbladder in a dog  

Woo, Sang-Ho (Department of Veterinary Pathology and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University)
Go, Du-Min (Department of Veterinary Pathology and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University)
Cheon, Doosung (POSTBIO, Inc.)
Kim, Jae-Hoon (Department of Veterinary Pathology, Cheju National University)
Choi, Gabchol (W Animal Medical Center)
Oh, Ye-In (Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University)
Kim, Dae-Yong (Department of Veterinary Pathology and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University)
Publication Information
Korean Journal of Veterinary Research / v.60, no.2, 2020 , pp. 101-104 More about this Journal
Abstract
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. Microscopically, 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.
Keywords
dog; gallbladder; tumor; carcinoid; neuroendocrine;
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