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Multicentric malignant lymphoma in a pallid bat

C B Andreasen1, J R Dulmstra

  • 1Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Oregon State University, Corvallis 97331, USA.

Journal of Wildlife Diseases
|July 1, 1996
PubMed
Summary

A pallid bat (Antrozous pallidus) was diagnosed with multicentric lymphoma, a type of cancer affecting multiple lymph nodes. This case highlights the importance of monitoring bat health and potential diseases in wildlife populations.

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Area of Science:

  • Veterinary Pathology
  • Wildlife Disease Ecology
  • Mammalian Oncology

Background:

  • Pallid bats (Antrozous pallidus) are insectivorous bats found in western North America.
  • Neoplasms in bats are infrequently reported, making disease surveillance crucial.
  • Ascites, splenomegaly, and hepatomegaly are indicative of systemic illness.

Observation:

  • A 2.5-year-old female pallid bat presented with abdominal distension, ascites, splenomegaly, hepatomegaly, and a cheek mass.
  • Clinical signs were observed prior to the animal's death.
  • Gross pathology findings suggested significant internal organ involvement and a localized tumor.

Findings:

  • Histologic examination confirmed multicentric lymphoma as the diagnosis.
  • The lymphoma was widespread, affecting multiple organs.

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  • Electron microscopy did not identify retroviral particles, suggesting a non-viral etiology or limitations in detection.

    • Implications:

    • This case highlights multicentric lymphoma as a potential diagnosis in pallid bats.
    • Further research into the etiology and prevalence of lymphoma in this species is warranted.
    • Accurate diagnosis of neoplastic diseases in wildlife is essential for conservation and veterinary medicine.