Analyze Diet
Journal of the South African Veterinary Association2015; 86(1); 1257; doi: 10.4102/jsava.v86i1.1257

Solar keratoma: An atypical case.

Abstract: This case report shows that keratomas can occur in both hind feet of equine patients and should be considered as a diagnosis for long-standing, intermittent lameness localised to the hooves. A Thoroughbred racehorse presented with long-standing abscessation of the right hind hoof. Owing to the long-standing nature, the abscess draining tract was surgically explored. A focal mass was found within the solar horn. Histopathology revealed the mass to be a keratoma. A similar mass was removed from the left hind hoof a few months later after similar presenting signs. This case shows that keratomas can occur in more than one hoof within a short period and should be considered a differential diagnosis for long-standing lameness localised to the hoof.
Publication Date: 2015-09-18 PubMed ID: 26824342PubMed Central: PMC6138132DOI: 10.4102/jsava.v86i1.1257Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Case Reports
  • Journal Article

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 article revolves around a unique case study where a Thoroughbred racehorse developed keratomas (a type of benign tumor) in both hind feet. These keratomas were identified as the cause of the horse’s long-standing lameness and were removed through surgical procedures.

Case Presentation

  • The case report begins with an instance involving a Thoroughbred racehorse. The equine patient had been suffering from long-standing abscessation – a painful buildup of pus – in its right hind hoof.
  • The chronic nature of this abscess compelled the researchers to investigate it further by surgically exploring the abscess draining tract.
  • Upon exploration, they discovered a focal mass within the solar horn – a part of the horse’s hoof. This unexpected finding was a crucial twist in the regular course of treatment.

Investigations and Diagnosis

  • Once the focal mass was discovered, it was removed and sent for histopathological examination for a definitive diagnosis.
  • Upon examination, the focal mass was diagnosed as a keratoma. Keratomas are benign tumours formed from skin cells. In horses, these keratomas are often associated with the hooves, making them a pathological cause of lameness.
  • Unlike typical cases where only one hoof might be affected, this case involved the development of a similar mass on the left hind hoof a few months later, leading to similar symptoms.

Significance of the Case Study

  • This unique case highlights that keratomas can occur in more than one hoof within a short period.
  • As such, keratomas should be considered a differential diagnosis for long-standing, intermittent lameness localised to the hoof in horses.
  • This case adds to the body of knowledge on equine diseases and could potentially change the diagnostic approach of equine practitioners when symptoms of persistent lameness are observed.

Cite This Article

APA
Miller SM, Katzwinkel RH. (2015). Solar keratoma: An atypical case. J S Afr Vet Assoc, 86(1), 1257. https://doi.org/10.4102/jsava.v86i1.1257

Publication

ISSN: 2224-9435
NlmUniqueID: 7503122
Country: South Africa
Language: English
Volume: 86
Issue: 1
Pages: 1257

Researcher Affiliations

Miller, Sean M
  • Summerveld Equine Hospital, Gillitts. sean@savets.co.za.
Katzwinkel, Ralph H

    MeSH Terms

    • Animals
    • Debridement / veterinary
    • Diagnosis, Differential
    • Hindlimb
    • Hoof and Claw / surgery
    • Horse Diseases / diagnosis
    • Horse Diseases / pathology
    • Horse Diseases / surgery
    • Horses
    • Keratosis / diagnosis
    • Keratosis / veterinary
    • Lameness, Animal / etiology
    • Male
    • Physical Endurance

    Conflict of Interest Statement

    The authors declare that they have no financial or personal relationships that may have inappropriately influenced them in writing this article.

    References

    This article includes 33 references
    1. Anon , 1991, Guide for veterinary service and judging of equestrian events, 4th edn., Lexington.
    2. Ange B. Diagnosis and treatment of foot infections. Journal of Equine Veterinary Science 2010;30(9):510–512.
    3. Back W, Schie MJJ, Bosch G. Keratoma and its cutting edges. Equine Veterinary Education 2007;9(6):288–289.
      doi: 10.2746/095777307X213243google scholar: lookup
    4. Barrett MF, Subrod CJ. Use of magnetic resonance imaging to detect and direct therapy of an osseous cystic lesion at the solar surface of the third phalanx. Equine Veterinary Education 2008;20(1):19–23.
      doi: 10.2746/095777307X260098google scholar: lookup
    5. Bowker RM. The growth and adaptive capabilities of the hoof wall and sole: Functional changes in response to stress. Proceedings of the 49th American Association of Equine Practitioners Convention 2003;pp. 146–168.
    6. Boys Smith SJ, Clegg PD, Hughes I, Singer ER. Complete and partial hoof wall resection for keratoma removal: Postoperative complications and final outcome in 26 horses (1994–2004). Equine Veterinary Education 2006;38(2):127–133.
      pubmed: 16536381
    7. Brounts SH, Adams SB, Vemireddi V, Holland CH. A malignant glomus tumour in the foot of a horse. Equine Veterinary Education 2008;20(1):24–27.
      doi: 10.2746/095777308X258838google scholar: lookup
    8. Butler J.A., Colles C.M., Dyson S.J., Kold S.E. & Poulos P.W., 2000, Clinical radiology of the horse , 2nd edn., Blackwell Science, Oxford.
    9. Cauvin ERJ, Munroe GA. Septic osteitis of the distal phalanx: Findings and surgical treatment in 18 cases. Equine Veterinary Education 1998;30(6):512–519.
      pubmed: 9844970
    10. Chaffin MK, Carter GK, Sustaire D. Management of a keratoma in a horse: A case report. Equine Veterinary Science 1989;9(6):323–325.
    11. Chan CCH, Munroe GA. Treatment of a keratoma in a Clydesdale horse. Veterinary Record 1997;140(17):453–456.
      pubmed: 9153746
    12. Christman C. Multiple keratomas in an equine foot. Canadian Veterinary Journal 2008;49(9):904–906.
      pmc: PMC2519916pubmed: 19043490
    13. Cullimore A, Booth T. Clinical aspects of the equine foot Part 5: Equine keratoma. UK Vet: Companion Animal 2010;15(2):11–15.
    14. Durham AE, Walmsley JP. Squamous cell carcinoma of the epidermal laminae. Equine Veterinary Education 1997;9(1):30–33.
    15. Dyson SJ. The distal phalanx and the distal interphalangeal joint. 2003;pp. 358–359.
    16. Farrow C.S., 2006, Veterinary diagnostic imaging: The horse, Mosby Elsevier, St. Louis.
    17. Floyd A.E. &. Mansmann R.A., 2007, Equine Podiatry, illustrated edition, Elsevier Health Science, St. Louis.
    18. Furst AE, Lischer CJ. Foot. 2006;pp. 1184–1192.
    19. Gasiorowski JC, Richardson DW. Supracoronary approach for keratoma removal in horses: Two cases. Equine Veterinary Education 2011;23(10):489–493.
    20. Hamir AN, Kunz C, Evans LH. Equine keratoma. Journal of Veterinary Diagnostic Investigation 1992;4:99–100.
      pubmed: 1554781
    21. Honnas CM. Keratomas of the equine digit. Equine Veterinary Education 1997;9(4):203–207.
    22. Honnas CM, Dabareiner RM, McCauley BH. Hoof wall surgery in the horse: Approaches to and underlying disorders. Veterinary Clinics of North America-Equine Practice 2003;19:479–499.
      doi: 10.1016/S0749-0739(03)00002-6pubmed: 14575170google scholar: lookup
    23. Lloyd KCK, Peterson PR, Wheat JD, Ryan AE, Clark JH. Keratomas in horses: Seven cases (1975–1986). Journal of the American Veterinary Medical Association 1988;193(8):967–970.
      pubmed: 3192482
    24. Mair TS, Linnenkohl W. Low-field magnetic resonance imaging of keratomas of the hoof wall. Equine Veterinary Education 2012;24(9):459–467.
    25. McDiarmid A. Keratoma from the frog corium of a horse. Equine Veterinary Education 2007;19(6):285–287.
      doi: 10.2746/095777307X204207google scholar: lookup
    26. Moyer W. Submural tumours and masses of the foot. Equine Veterinary Education 2008;20(1):28–29.
      doi: 10.2746/095777308X265218google scholar: lookup
    27. O’Grady SE, Horne PA. Lameness caused by a solar keratoma: A challenging differential diagnosis. Equine Veterinary Education 2001;3(2):114–116.
    28. Pickersgill CH. Recurrent white line abscessation associated with a keratoma in a riding pony. Equine Veterinary Education 2000;12(6):286–291.
    29. Redding WR, O’Grady SE. Nonseptic diseases associated with the hoof complex. Veterinary Clinics of North America-Equine Practice 2012;28(2):407–421.
      doi: 10.1016/j.cveq.2012.06.006pubmed: 22981198google scholar: lookup
    30. Schulze T, Weinberger T, Maraki M. Diagnosis of a chronic keratoma of the hoof with the use of the magnetic resonance image technique. Proceedings of the 13th European Society of Veterinary Orthopaedics and Traumatology Congress 2006;pp. 274–275.
    31. Stashak T.S. & Hill C., 1996, Practical guide to lameness, 1st edn., Blackwell, Ames.
    32. Valentine BA, Scott EA, Watrous BJ, Stonecipher CR. What is your diagnosis?. Journal of the American Veterinary Medical Association 2000;217(7):993–994.
      pubmed: 11019702
    33. Wagner PC, Balch-Burnett O, Merritt F. Surgical management of keratomas in the hoof of the horse. Equine Practice 1986;8(5):11–14.

    Citations

    This article has been cited 0 times.