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Lingual calcinosis circumscripta in a captive sitatunga.

T Yanai1, A Noda, S Kawakami

  • 1Department of Veterinary Pathology, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan. yanai@cc.gifu-u.ac.jp

Journal of Wildlife Diseases
|January 5, 2002
PubMed
Summary
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Calcinosis circumscripta, a rare condition in Bovidae, was diagnosed in a young sitatunga. This veterinary case report details the necropsy and histological findings of nodules on the animal's tongue.

Area of Science:

  • Veterinary Pathology
  • Comparative Pathology
  • Zoological Medicine

Background:

  • Calcinosis circumscripta (CC) is a rare condition characterized by the deposition of calcium salts.
  • While documented in various species, its occurrence in Bovidae is infrequently reported.

Observation:

  • A 10-year-old female sitatunga presented with two coalescing nodules on the ventral tongue.
  • Gross examination revealed chalky, gritty nodules with multiple loculi.
  • Histopathology showed amorphous, basophilic material within loculi, surrounded by fibrous tissue, foreign body giant cells, and macrophages.

Findings:

  • The amorphous material stained positive for PAS and von Kossa's stain, confirming calcification.
  • Histological features were consistent with calcinosis circumscripta.

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  • The presence of CC in a sitatunga is a notable finding within the Bovidae family.

    • Implications:

    • This case expands the understanding of calcinosis circumscripta in exotic ungulates.
    • Highlights the importance of considering rare conditions in veterinary diagnostics for wildlife.
    • Contributes to the limited literature on calcinosis circumscripta in Bovidae.