Ureteral mast cell tumor in a dog

Michele A Steffey, Kenneth M. Rassnick, Brian Porter, Bradley L. Njaa

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


A 6-year-old, castrated male, mixed-breed dog was diagnosed with partial unilateral ureteral obstruction secondary to a ureteral mass. The ureteral mass was surgically resected, and an ureteroneocystostomy was performed. Histopathology of the ureteral mass was consistent with a poorly differentiated mast cell tumor (MCT). The patient recovered well but was euthanized 5 months postoperatively for central nervous system signs. A choroid plexus tumor was diagnosed during necropsy examination. There was no evidence of recurrence or dissemination of the ureteral MCT. Extracutaneous MCTs are rare in dogs, and primary MCT associated with the urinary tract has not previously been reported in the veterinary literature.

Original languageEnglish (US)
Pages (from-to)82-85
Number of pages4
JournalJournal of the American Animal Hospital Association
Issue number1
StatePublished - Jan 2004
Externally publishedYes

ASJC Scopus subject areas

  • veterinary(all)


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