Temporally separated bilateral anal sac gland carcinomas in four dogs

Kelly Blacklock, E J Friend, P Delisser, S Murphy, G Polton

Research output: Contribution to journalArticlepeer-review


Anal sac gland carcinoma arising from the apocrine secretory epithelium in the anal sac wall, is locally invasive and highly metastatic. The majority of anal sac gland carcinomas are unilateral on presentation, but bilateral tumours have been identified. This case series presents the outcome of four unique cases of unilateral anal sac gland carcinoma which subsequently developed contralateral anal sac gland carcinoma 50 to 390 days after removal of the initial tumour. Median survival was 1035 days after initial diagnosis and 807 days after diagnosis of the second anal sac gland carcinoma.

Original languageEnglish
Pages (from-to)432-6
Number of pages5
JournalJournal of Small Animal Practice
Issue number8
Publication statusPublished - Aug 2013


  • Adenocarcinoma/diagnosis
  • Anal Gland Neoplasms/diagnosis
  • Anal Sacs/pathology
  • Animals
  • Dog Diseases/diagnosis
  • Dogs
  • Fatal Outcome
  • Female
  • Male

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