A Carcinoid Tumor in the Gallbladder of a Dog

C. N. Morrell, M. V. Volk, J. L. Mankowski

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


A cholecystectomy was performed on a 10-year-old spayed female mixed-breed dog with chronic weight loss, persistently increased liver enzyme activities, and cholecystomegaly identified by ultrasonographic examination. A subsequent diagnosis of a biliary carcinoid was made based on a neuroendocrine-type histologic pattern, cytoplasmic argyrophilia by Grimelius staining, immunopositivity for chromogranin A, and the ultrastructural finding of cytoplasmic secretory granules in neoplastic cells. Extrahepatic biliary carcinoid tumors are rare tumors of humans and have not been documented in domestic animals.

Original languageEnglish (US)
Pages (from-to)756-758
Number of pages3
JournalVeterinary pathology
Issue number6
StatePublished - Nov 2002
Externally publishedYes


  • Dogs
  • biliary
  • carcinoid
  • gallbladder

ASJC Scopus subject areas

  • veterinary(all)


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