Equine sarcoids: treatment with a combination of acyclovir and surgical excision

dc.creatorRosa, Matheus Camargos de Britto
dc.creatorCampos, Maria Eduarda de Sousa Teixeira
dc.creatorGoulart, Raquel Luísa Lopes
dc.creatorToma, Hugo Shisei
dc.creatorPereira, Rodrigo Norberto
dc.creatorRaymundo, Djeison Lutier
dc.date2022-08-04T12:50:38Z
dc.date2023-06-27T18:25:19Z
dc.date2022-08-04T12:50:38Z
dc.date2023-06-27T18:25:19Z
dc.date2022-06-09
dc.date.accessioned2023-09-28T20:08:11Z
dc.date.available2023-09-28T20:08:11Z
dc.identifierROSA, M. C. de B. et al. Sarcoide em equinos: tratamento com associação de Aciclovir e excisão cirúrgica. Acta Scientiae Veterinariae, [S.l.], v. 50, p. 1-6, 2022. DOI: 10.22456/1679-9216.122200.
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/57248
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9045320
dc.descriptionBackground: sarcoids are the most frequent skin tumors among horses, causing serious lesions due to their different shapes, sizes, degree of invasiveness and distribution on the body. The pathogenesis of sarcoids is multifactorial, with genetic, viral and environmental involvement, making their treatment complex. The aggressiveness and high rate of recurrence of sarcoids makes it difficult to use an effective treatment, which is why there are several therapeutic routes described in the literature. Aiming to describe and expand sarcoid treatments, this paper reports on the use of acyclovir in the treatment of this type of tumor. Cases: four horses sent to the Large Animal Veterinary Hospital of the Federal University of Lavras - UFLA were diagnosed and treated for sarcoids. Case 1. Lesions on the right ear, region of the masseter muscle of the right side of the face, neck, vulva and medial aspect of the left pelvic limb. Case 2. Lesion in the left groin region. Case 3. Lesions on the face, masseter muscle region on the left side, mandibular region and right ear pinna. Case 4. Lesion in the lateral region of the left pelvic limb, close to the tarsometatarsal joint. All horses had a diagnosis of sarcoid, which was confirmed by histopathological examination of material collected after surgical excision. Macroscopically, the neoplastic lesions were classified as fibroblastic, verrucous and nodular. The tumors exhibited irregular surfaces, keratinization, and a firm consistency. Their surfaces were alopecic, slightly rough, some of them were ulcerated, and their color ranged from greyish to rosy and reddish. All the tumor masses were surgically excised from the 4 horses, and one sarcoid was treated by thermal cauterization with liquid nitrogen due to the lesion’s depth and size. In most cases, the sarcoid removal sites were closed with sutures. Only 2 lesions were not sutured due to the impossibility of bringing the edges of tissue close together, or due to proximity to the tarsometatarsal joint. The surgical wounds were cleaned twice a day with sterile saline solution followed by the topical application of Acyclovir. One of the animals received complementary therapy with Cimetidine. Discussion: the equines recovered completely from their sarcoid treatment, and no recurrences were reported a year later. Thus, the combination of treatments employed for the extirpation of sarcoids proved to have greater chances of success. First, all the tumors were surgically removed with the largest possible margins of safety in order to ensure the elimination of neoplastic cells. In the postoperative period, all the animals received topical treatment of the lesions with acyclovir after surgical resection of the tumors. The drug aided the complete healing of post-surgical wounds, and healing time varied according to the size and depth of the lesion. One tumor was treated with liquid nitrogen after surgical excision of the sarcoid. Another horse was treated with cimetidine over a 3-month period after surgical excision of the neoplasm in order to reduce the sarcoid and prevent its evolution. Surgical excision of the sarcoid associated with topical application of acyclovir ointment showed satisfactory results. Moreover, the combination of surgical excision and administration of liquid nitrogen on the lesion and topical application of acyclovir ointment in the postoperative period also provided good results. Given the complexity of sarcoid treatment and the high recurrence rate of these tumors, the use of combined treatments should be taken into account.
dc.descriptionIndisponível
dc.languagept_BR
dc.publisherUniversidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Veterinária (Favet)
dc.rightsAttribution 4.0 International
dc.rightsacesso aberto
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.sourceActa Scientiae Veterinariae
dc.subjectEquinos
dc.subjectTumor de pele
dc.subjectNeoplasia cutânea
dc.subjectTerapia
dc.subjectHorses
dc.subjectSkin tumor
dc.subjectCutaneous neoplasm
dc.subjectTherapy
dc.titleSarcoide em equinos: tratamento com associação de Aciclovir e excisão cirúrgica
dc.titleEquine sarcoids: treatment with a combination of acyclovir and surgical excision
dc.typeArtigo


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