Metastatic cutaneous myxosarcoma in an adult horse.
Abstract: A 25-year-old mixed-breed equine with separate nodular cutaneous lesions in the right thoracic limb (RTL) and right ventral abdominal region was admitted to a Veterinary Hospital in Belo Horizonte, Minas Gerais. Fine-needle aspiration cytology was performed on the RTL lesion and superficial cervical lymph node, and the results were suggestive of a malignant neoplasm known as myxosarcoma. Due to the unfavorable prognosis, the animal was euthanized. Based on the macroscopic and microscopic findings, the diagnosis of metastatic cutaneous myxosarcoma was confirmed. Although rare, this tumor should be considered as a differential diagnosis for cutaneous neoplasms in this species.
© 2024 American Society for Veterinary Clinical Pathology.
Publication Date: 2024-03-03 PubMed ID: 38433106DOI: 10.1111/vcp.13329Google Scholar: Lookup
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Summary
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The study examines a situation where a horse with nodular cutaneous lesions was diagnosed with metastatic cutaneous myxosarcoma, a rare malignant tumor.
Case Description
- The research revolves around a 25-year-old mixed breed horse, that was presented to a Veterinary Hospital in Belo Horizonte, Minas Gerais because it had separate nodular cutaneous lesions in the right thoracic limb (RTL) and right ventral abdominal region.
Diagnostic Process
- Medical professionals carried out a fine-needle aspiration cytology, a non-surgical method used to extract cells for pathological examination, on the RTL lesion and a superficial cervical lymph node.
- The results from this procedure were suggestive of a malignant neoplastic disease called myxosarcoma.
Prognosis and Outcome
- Given the serious nature of the disease, the horse’s prognosis was deemed unfavorable, leading the veterinarians to decide for euthanization of the animal.
Post-Mortem Examination
- Upon examination of the animal post-mortem, both macroscopic (observable with the naked eye) and microscopic details confirmed the diagnosis of metastatic cutaneous myxosarcoma, indicating that the tumor had spread to other parts of the body.
Significance of the Study
- The research emphasizes that while myxosarcoma is rare, it should be included as a differential diagnosis for skin tumors in horses to enhance diagnostic precision and to facilitate proper treatment decisions.
Cite This Article
APA
Rabelo AA, Maranhão RPA, de Miranda ALS, Ocarino NM, Amaral CI, Paes PRO, Monteiro NCC, Fantini P.
(2024).
Metastatic cutaneous myxosarcoma in an adult horse.
Vet Clin Pathol, 53(1), 116-121.
https://doi.org/10.1111/vcp.13329 Publication
Researcher Affiliations
- Department of Veterinary Clinic and Surgery, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Clinic and Surgery, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Clinic and Surgery, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Pathology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Pathology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Clinical Pathology, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Clinic and Surgery, Federal University of Minas Gerais, Belo Horizonte, Brazil.
- Department of Veterinary Clinic and Surgery, Federal University of Minas Gerais, Belo Horizonte, Brazil.
References
This article includes 16 references
- Menghini TL, Wronski JG, Aschenbroich S. Pathology in practice.. J Am Vet Med Assoc 2022;259(S2):1-4.
- Dennis MM, McSporran KD, Bacon NJ, Schulman FY, Foster RA, Powers BE. Prognostic factors for cutaneous and subcutaneous soft tissue sarcomas in dogs.. Vet Pathol 2010;48(1):73-84.
- Ehrhart N. Soft-tissue sarcomas in dogs: a review.. J Am Anim Hosp Assoc 2005;41(4):241-246.
- Edens LM, Taylor DD, Murray MJ, Spurlock GH, Anver MR. Intestinal myxosarcoma in a thoroughbred mare.. Cornell Vet 1992;82(2):163-167.
- Samuelson JP, Echeverria KO, Foreman JH, Fredrickson RL, Sauberli D, Whiteley HE. Metastatic myxosarcoma in a quarter horse gelding.. J Vet Diagn Invest 2017;30(1):121-125.
- Orsini J, Foster D, Habecker P. Congenital mandibular myxosarcoma in a foal.. Vet Rec Case Rep 2014;2(1):e000047.
- Ali AA, Refat NAGA, Metwally MMM, Sobh MS. Neoplasms in equine species in Sharkia governorate.. Egypt Adv Anim Vet Sci 2021;9(11):2005-2013.
- Dal Zotto CS, Dalegrave S, Flecke LR. Mixossarcoma cutâneo em cão: relato de caso.. Pubvet 2021;15(7):1-5.
- Olivier J, Weiler K, Hartung S, Weyrich A, Bauer N. Myxosarkom in der Halsregion eines Teddy-Hamsters (Mesocricetus auratus).. Tierarztliche Prax Ausg K 2023;51(1):48-54.
- Khachatryan AR, Wills TB, Potter KA. What is your diagnosis? Vertebral mass in a dog.. Vet Clin Pathol 2009;38(2):257-260.
- Hendrick MJ. Mesenchymal tumors of the skin and soft tissues.. In: Meuten DJ, ed. Tumors in Domestic Animals. John Wiley & Sons, Inc; 2016:142-175.
- Mauldin EA, Peters-Kennedy J. Integumentary system.. In: Grant Maxie M, ed. Jubb, Kennedy & Palmer's Pathology of Domestic Animals: volume 1. Elsevier; 2016:509-736.e1.
- Wang FI, Liang SL, Eng HL, Jeng CR, Pang VF. Disseminated liposarcoma in a dog.. J Vet Diagn Invest 2005;17(3):291-294.
- Masserdotti C, Bonfanti U, De Lorenzi D, Ottolini N. Use of oil red O stain in the cytologic diagnosis of canine liposarcoma.. Vet Clin Pathol 2006;35(1):37-41.
- Kim H, Nakaichi M, Itamoto K, Taura Y. Primary chondrosarcoma in the skull of a dog.. J Vet Sci 2007;8(1):99-101.
- Gómez J, Tsagozis P. Multidisciplinary treatment of soft tissue sarcomas: an update.. World J Clin Oncol 2020;11(4):180-189.
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