Surgical treatment of otohematoma
Case report
DOI:
https://doi.org/10.31533/pubvet.v20n7e1979Keywords:
Dog, auricular hematoma, surgery, treatmentAbstract
Otohematoma, also known as auricular hematoma, is a common disorder affecting dogs and cats, with a higher prevalence in animals with pendulous ears. It is frequently diagnosed in the clinical and surgical routine of small animal practice. The condition is characterized by a painful, fluctuant swelling of variable size and location, typically involving the concave surface of the pinna. Otohematoma formation is associated with direct trauma, repetitive impact of the ear against the head caused by head shaking or scratching, coagulation disorders, parasitic infestations, allergic diseases, foreign bodies, and other conditions that lead to rupture of auricular blood vessels, often secondary to otitis-associated inflammation and pain. The main predisposing factors reported include ear conformation, breed, age, sex, and the presence of concurrent diseases. Diagnosis is based on clinical history and otoscopic examination findings, with surgical intervention remaining the treatment of choice. Currently, several surgical techniques and conservative approaches have been described for the management of otohematoma, yielding variable clinical outcomes. This case report describes the occurrence of otohematoma in a mixed-breed dog treated by surgical drainage through an S-shaped incision, followed by the application of a tension suture technique using sterile 1-cm catheter segments as stents. The proposed technique resulted in an excellent clinical outcome, providing complete drainage of the auricular hematoma, preventing residual blood accumulation between the auricular cartilages, and promoting complete healing of the pinna without tissue deformity.
References
Birchard, S. J., & Sherding, R. G. (2008). Manual Saunders: Clínica de pequenos animais. In Ed. Roca (Vol. 3).
Blättler, U., Harlin, O., Mattison, R. G., & Rampelberg, F. (2007). Fibrin sealant as a treatment for canine aural haematoma: A case history. The Veterinary Journal, 173(3), 697–700. https://doi.org/10.1016/j.tvjl.2006.02.009.
Bojrab, M. J., Waldron, D. R., & Toombs, J. P. (2014). Current techniques in small animal surgery: 5th edition. In Current Techniques in Small Animal Surgery, Fifth Edition. https://doi.org/10.1201/b17702.
Calzadilla, C. A., & Lopéz, J. e. (2001). Tratamiento médico del hematoma auricular canino: resolución de 20 casos clínicos. Pequeños Animales, (33), 13–17.
Eurides, D., Souza, L. A., Oliveira, B. J. N. A., & Luiz, A. F. S. (2008). Drenagem de otohematoma em cães. Revista Portuguesa de Ciências Veterinárias, 103, 59–63.
Evangelista, L. S. M., Carvalho, Y. N. T., Branco, M. A. C., Lopes, R. R. F. B., Amorim Neto, J., & Quessada, A. M. (2012). Estudo retrospectivo do otohematoma em cães atendidos em um hospital veterinário universitário. Acta Veterinária Brasílica, 6(1), 48–50.
Fossum, T. W. (2021). Cirurgia de pequenos animais (3ed.). Elsevier Editora.
Graça, J. C. L. (2010). Otohematoma – estudo retrospectivo de 6 anos: possíveis etiologias. In Departamento de Medicina Veterinária: Master of Science.
Harvey, R. G. (2005). Ear diseases of the dog and cat. Mason Publishing Company.
Im, G. J., Chae, S. W., Choi, J., Kim, Y. S., Kim, W. J., & Jung, H. H. (2008). Intralesional steroid injection for the management of otohematoma. Otolaryngology - Head and Neck Surgery, 139(1), 115–119. https://doi.org/10.1016/j.otohns.2008.01.006.
Johnson, A. L., Greenfield, C. L., Klippert, L., Hungerford, L. L., Farmer, J. A., & Siegel, A. (1993). Frequency of procedure and proficiency expected of new veterinary school graduates with regard to small animal surgical procedures in private practice. Journal of the American Veterinary Medical Association, 202(7), 1068–1070. https://doi.org/10.2460/javma.1993.202.07.1068.
Joyce, J. A. (1994). Treatment of canine aural haernatorna using an indwelling drain and corticosteroids. Journal of Small Animal Practice, 35(7), 341–344. https://doi.org/10.1111/j.1748-5827.1994.tb01711.x.
Joyce, J. A., & Day, M. J. (1997). Immunopathogenesis of canine aural haematoma. Journal of Small Animal Practice, 38(4), 152–158. https://doi.org/10.1111/j.1748-5827.1997.tb03453.x.
Kuwahara, J. (1986). Canine and feline aural hematoma: clinical, experimental, and clinicopathologic observations. American Journal of Veterinary Research, 47(10), 2300–2308.
Lanz, O. I., & Wood, B. C. (2004). Surgery of the ear and pinna. Veterinary Clinics: Small Animal Practice, 34(2), 567–599. https://doi.org/10.1016/j.cvsm.2003.10.011.
Little, S. E. (2016). O gato: Medicina interna. Editora Roca.
Lopes, D. O. M., Leitão, A. M. F. B., Lopes, D. S., & Abe, M. S. F. (2025). Complicações otológicas em cadela com doença autoimune sistêmica: Abordagem clínica e cirúrgica. PUBVET, 19(9), 1–7. https://doi.org/10.31533/pubvet.v19n09e1836.
Mikawa, K., Itoh, T., Ishikawa, K., Kushima, K., Uchida, K., & Shii, H. (2005). Epidemiological and etiological studies on 59 aural hematomas of 49 dogs. Japanese Journal of Veterinary Anesthesia and Surgery, 36(4), 87–91. https://doi.org/10.2327/jvas.36.87.
Pacheco, A., Montanha, F., Gomes, D., & Bernardi, C. (2013). Tratamento cirúrgico de otohematoma por colocação de brinco. Revista Eletrônica de Medicina Veterinária, 20(1), 1–1.
PractiVet. (2007). Sutureless hematoma repair system® [Material técnico]. PractiVet. https://www.petvetbiomed.com/html5/web/10200/16371ImageFile3.pdf
Quevedo, M. G., & Silveira, S. D. (2022). Correção cirúrgica de otohematoma em cão: Relato de caso. PUBVET, 16(9), 1–6. https://doi.org/10.31533/pubvet.v16n09a1206.1-6.
Teixeira, C. R., Lima, L. S. A., Rahal, S. C., Leite, C. A. L., Ranzani, J. J. T., & Brandão, C. V. S. (2002). Estudo epidemiológico do otohematoma canino. Revista Brasileira de Ciência Veterinária, 9, 172–174.
Valle, A. C. V, Brunel, H., & Carvalho, A. C. (2020). Treatment of aural hematoma in a dog (Canis familiaris) by homeopathy: Case report. PUBVET, 14(9), 1–5. https://doi.org/10.31533/pubvet.v14n9a647.1-5.
Vigneswari, M., Tina Roshini, S., Gurunathan, N., & Arul Jothi, N. (2023). Canine aural haematoma: A review. The Pharma Innovation Journal, 12(2).
Weiss, D. J., & Wardrop, J. K. (2010). Schalm’s Veterinary Hematology.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Maríntia de Almeida Baldo, Gustavo Forlani Soares

This work is licensed under a Creative Commons Attribution 4.0 International License.
Você tem o direito de:
Compartilhar — copiar e redistribuir o material em qualquer suporte ou formato
Adaptar — remixar, transformar, e criar a partir do material para qualquer fim, mesmo que comercial.
O licenciante não pode revogar estes direitos desde que você respeite os termos da licença. De acordo com os termos seguintes:
Atribuição
— Você deve dar o crédito apropriado, prover um link para a licença e indicar se mudanças foram feitas. Você deve fazê-lo em qualquer circunstância razoável, mas de nenhuma maneira que sugira que o licenciante apoia você ou o seu uso. Sem restrições adicionais
— Você não pode aplicar termos jurídicos ou medidas de caráter tecnológico que restrinjam legalmente outros de fazerem algo que a licença permita.









