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Veterinary surgery : VS2021; 50(2); 383-392; doi: 10.1111/vsu.13559

Fibro-Osseous Lesions Of The Craniofacial Complex In Horses: 30 Cases (2001-2019).

Abstract: To describe the presentation, diagnosis, treatment, and outcome for horses with fibro-osseous lesions of the craniofacial complex. Methods: Retrospective multicenter case series. Methods: Thirty horses evaluated for fibro-osseous lesions of the skull from January 1, 2001 through December 31, 2019 in four centers. Methods: Medical records were reviewed for signalment, clinical presentation, histological and diagnostic imaging findings, treatment instituted, and outcome. Long-term outcome information was obtained by owner questionnaire or the medical record. Results: Diagnoses included ossifying fibroma in 20 of 30 horses, osteoma in eight of 30 horses, and fibrous dysplasia in two of 30 horses. Twelve of 30 lesions were diagnosed in horses <1 year old, and 20 of 30 lesions originated from the rostral mandible. The most common treatment was rostral mandibulectomy. Recurrence was not reported after complete excision. Incomplete excision was confirmed in eight horses (four ossifying fibromas, three osteomas, and one fibrous dysplasia), and follow-up information was available for seven horses. Recurrence occurred in one horse, while six horses had long-term resolution of clinical signs. Prognosis for survival and return to use was excellent in 23 horses with long-term follow-up. Conclusions: Fibro-osseous lesions were uncommon in this multicenter study; they were most commonly diagnosed in young animals and most frequently affected the rostral mandible. Long-term survival was excellent. Conclusions: The definitive diagnosis of fibro-osseous lesions of the craniofacial complex in horses is made from results of histopathology and cannot be determined on the basis of clinical presentation alone. Surgical excision is indicated, and prognosis can be favorable even when complete surgical margins are not obtained.
© 2021 The American College of Veterinary Surgeons.
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Publication Date: 2021-01-05 PubMed ID: 33399249DOI: 10.1111/vsu.13559Google Scholar: Lookup
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  • Journal Article
  • Multicenter Study

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research paper is about an evaluation of fibro-osseous lesions in the craniofacial complex of horses, focusing on its diagnosis, treatment, and outcome, conducted across multiple centers over a span of 19 years.

Research Methodology

  • In this retrospective multicenter case series, the researchers conducted an in-depth study of fibro-osseous lesions in horses.
  • The study timeframe was from January 1, 2001, to December 31, 2019.
  • The medical records of thirty horses from four different centers were thoroughly reviewed. The research team sought to gather as much relevant information as possible on horses displaying signs of fibro-osseous lesions.
  • Data collected included the animal’s background, clinical signs, diagnostic imaging findings, histopathology results, the specific treatment undertaken, and the resulting outcomes, long-term and otherwise.

Results

  • The overarching results indicated that the majority of diagnoses were of ossifying fibroma, accounting for 20 of 30 cases. The others included osteoma (eight cases) and fibrous dysplasia (two cases).
  • It was found that 12 lesions were diagnosed in horses under one year old, and 20 out of 30 lesions originated from the horse’s rostral mandible.
  • In terms of treatment, rostral mandibulectomy was the most common course of action. It was observed that once complete excision was achieved, recurrence was not reported.
  • However, eight horses (comprising four ossifying fibromas, three osteomas, and one fibrous dysplasia) had confirmed incomplete excision but showed no evidence of recurrence.
  • In total, 23 horses treated and monitored for a long period demonstrated excellent survival and return to use.

Conclusions

  • The authors concluded that fibro-osseous lesions were uncommon, usually diagnosed in young horses, and most frequently affected the rostral mandible.
  • Furthermore, these fibro-osseous lesions of the craniofacial complex required a definitive diagnosis made from results of histopathology and not on the clinical presentation alone.
  • Even when complete surgical margins could not be obtained, surgical excision was still indicated, and the prognosis remained largely favorable.

Cite This Article

APA
Nottle BF, Tatarniuk DM, Caldwell FJ, Bell CD, Caston SS, Merkatoris PT, Gillen AM, Katzman SA. (2021). Fibro-Osseous Lesions Of The Craniofacial Complex In Horses: 30 Cases (2001-2019). Vet Surg, 50(2), 383-392. https://doi.org/10.1111/vsu.13559

Publication

Veterinary surgery : VS
ISSN: 1532-950X
NlmUniqueID: 8113214
Country: United States
Language: English
Volume: 50
Issue: 2
Pages: 383-392

Researcher Affiliations

Nottle, Bridget F
  • William R. Pricthard Veterinary Medical Teaching Hospital, University of California, Davis, California, USA.
Tatarniuk, Dane M
  • Department of Veterinary Clinical Sciences, Lloyd Veterinary Medical Center, Iowa State University, Ames, Iowa, USA.
Caldwell, Fred J
  • Department of Clinical Sciences, JT Vaughan Large Animal Teaching Hospital, Auburn University, Auburn, Alabama, USA.
Bell, Chris D
  • Elders Equine Veterinary Services, Winnipeg, Manitoba, Canada.
Caston, Stephanie S
  • Department of Veterinary Clinical Sciences, Lloyd Veterinary Medical Center, Iowa State University, Ames, Iowa, USA.
Merkatoris, Paul T
  • Department of Veterinary Clinical Sciences, Lloyd Veterinary Medical Center, Iowa State University, Ames, Iowa, USA.
Gillen, Alex M
  • Philip Leverhulme Equine Hospital, University of Liverpool, Neston, Cheshire, United Kingdom.
Katzman, Scott A
  • Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California, USA.

MeSH Terms

  • Age Factors
  • Animals
  • Female
  • Fibroma, Ossifying / diagnosis
  • Fibroma, Ossifying / pathology
  • Fibroma, Ossifying / surgery
  • Fibroma, Ossifying / veterinary
  • Fibrous Dysplasia of Bone / diagnosis
  • Fibrous Dysplasia of Bone / pathology
  • Fibrous Dysplasia of Bone / surgery
  • Fibrous Dysplasia of Bone / veterinary
  • Horse Diseases / diagnosis
  • Horse Diseases / pathology
  • Horse Diseases / surgery
  • Horses
  • Male
  • Osteoma / diagnosis
  • Osteoma / pathology
  • Osteoma / surgery
  • Osteoma / veterinary
  • Retrospective Studies
  • Treatment Outcome

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