Bilateral Malignant Seminomas in Two Unrelated, Aged Trumpeter Hornbills (Bycanistes buccinator)

Morena B. Wernick, Jeremy R. Tobias, Robert B. Moeller, John Barnes, Chiara Palmieri, H L Shivaprasad

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Seminomas occur infrequently in birds. Two cases of bilateral malignant seminomas in unrelated trumpeter hornbills (Bycanistes buccinator) are described. Case 1 was a 22-year-old trumpeter hornbill submitted for necropsy because of sudden death at a zoo in California. Postmortem examination revealed multiple masses within the body cavity, 2 of which replaced both testes. Case 2 was a 19-year-old trumpeter hornbill at a zoo in North Carolina that underwent exploratory surgery for a suspected gastrointestinal obstruction. Both testes were diffusely enlarged, compressing and replacing the adjacent kidneys. In both birds, the masses were composed of discrete, round to polyhedral cells, typical of seminomas. Examination of the ancestry of the hornbills showed they were unrelated to each other, suggesting a potential predisposition for these birds to develop seminomas.

Original languageEnglish (US)
Pages (from-to)125-129
Number of pages5
JournalJournal of Avian Medicine and Surgery
Issue number2
StatePublished - Jun 1 2015


  • Avian
  • Bycanistes buccinator
  • Metastasis
  • Seminoma
  • Testes
  • Trumpeter hornbill

ASJC Scopus subject areas

  • Small Animals


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