• 1.

    Durham AC, Pillitteri CA, San Myint M, Valli VE. Two hundred three cases of equine lymphoma classified according to the World Health Organization (WHO) classification criteria. Vet Pathol. 2013;50(1):8693. doi:10.1177/0300985812451603

    • Search Google Scholar
    • Export Citation
  • 2.

    Mair TS, Krudewig C. Mast cell tumours (mastocytosis) in the horse: a review of the literature and report of 11 cases. Equine Vet Educ. 2008;20(4):177182. doi:10.2746/095777308X291804

    • Search Google Scholar
    • Export Citation
  • 3.

    Taylor SD, Pusterla N, Vaughan B, Whitcomb MB, Wilson WD. Intestinal neoplasia in horses. J Vet Intern Med. 2006;20(6):14291436. doi:10.1892/0891-6640(2006)20[1429:inih]2.0.co;2

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 4.

    Bouéres CS, Câmara ACL, Castro MB, et al. Malignant peripheral nerve sheath tumour with metastasis and expression of endothelial differentiation factors in a horse. Equine Vet Educ. 2017;30(12):e463e467.

    • Search Google Scholar
    • Export Citation
  • 5.

    Kelley LC, Mahaffey EA. Equine malignant lymphomas: morphologic and immunohistochemical classification. Vet Pathol. 1998;35(4):241252. doi:10.1177/030098589803500402

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 6.

    Valli VE. B-cell neoplasms. In: Veterinary Comparative Hematopathology. Blackwell; 2007:119274.

  • 7.

    Vander Werf K, Davis E. Disease remission in a horse with EHV-5-associated lymphoma. J Vet Intern Med. 2013;27(2):387389. doi:10.1111/jvim.12050

    • Search Google Scholar
    • Export Citation
  • 8.

    Taintor J, Schleis S. Equine lymphoma. Equine Vet Educ. 2011;4:205213.

  • 9.

    Macon WR, Cousar JB, Waldron JA Jr, Hsu SM. Interleukin-4 may contribute to the abundant T-cell reaction and paucity of neoplastic B cells in T-cell-rich B-cell lymphomas. Am J Pathol. 1992;141(5):10311036.

    • Search Google Scholar
    • Export Citation
  • 10.

    Miller CA, Durham AC, Schaffer PA, Ehrhart EJ, Powers BE, Duncan CG. Classification and clinical features in 88 cases of equine cutaneous lymphoma. J Vet Diagn Invest. 2015;27(1):8691. doi:10.1177/1040638714561653

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 11.

    Edwards GB, Proudman CJ. An analysis of 75 cases of intestinal obstruction caused by pedunculated lipomas. Equine Vet J. 1994;26(1):1821. doi:10.1111/j.2042-3306.1994.tb04324.x

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 12.

    Bacci B, Stent AW, Walmsley EA. Equine intestinal lymphoma: clinical-pathological features, immunophenotype, and survival. Vet Pathol. 2020;57(3):369376. doi:10.1177/0300985820906889

    • PubMed
    • Search Google Scholar
    • Export Citation

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Pathology in Practice

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  • 1 Groupe de Recherche sur les Maladies Infectieuses en Production Animale (GREMIP), Faculté de Médecine Vétérinaire, Département de Pathologie et Microbiologie, Université de Montréal, St-Hyacinthe, Québec, Canada
  • | 2 Laboratoire de Santé Animale Québec, MAPAQ, Québec, Québec, Canada
History

An 18-year-old 688-kg Belgian gelding was presented for chronic weight loss and a recent deterioration of its general condition.

Clinical and Gross Findings

On initial assessment, the horse had a rectal temperature of 39.0 °C (reference range, 37.2 to 38.3 °C), heart rate of 100 beats/min (reference range, 28 to 44 beats/min), and shallow respirations with clinically normal bronchovesicular sounds. Intestinal sounds were also clinically normal. There was frothy discharge from the oral cavity, and feces were slightly liquid. Ceftiofur (6.6 mg/kg, IM, q 96 h), moxidectin-praziquantel (dose not reported, PO), and flunixin meglumine (1.1 mg/kg, IV) were initially

Contributor Notes

Corresponding author: Dr. Benoit-Biancamano (marie-odile.benoit-biancamano@umontreal.ca)

In collaboration with the American College of Veterinary Pathologists