Ocorrência de neoplasias em 15 anos de atendimento hospitalar de equídeos

Baccarin, Raquel Yvonne Arantes; Silva, Luís Cláudio Lopes Correia da; Belli, Carla Bargi; Fernandes, Wilson Roberto; Zoppa, André Luis do Valle de

doi:10.11606/s1413-95962011000600001

Cited by 8 publications

(9 citation statements)

References 6 publications

(9 reference statements)

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“…O linfoma é a neoplasia hemolinfática de maior incidência, variando entre 1,3 a 4% de todas as neoplasias que acometem equinos (Sundberg et al, 1977;Baccarin et al, 2011). Foram registrados 7 casos brasileiros em 5 anos (Baccarin et al, 2007;Dória et al, 2008;Consenza et al, 2010;Corrêa et al, 2010;Manso Filho et al, 2012;Soares et al, 2012;Amaral et al,2012).…”

Section: Introductionunclassified

Linfoma multicêntrico em cavalo: relato de caso

Silva¹,

Deconto²,

Dornbusch³

et al. 2012

RBCV

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ResumoNeoplasias hemolinfáticas em cavalos são relativamente incomuns, porém o linfoma é o mais frequente, sendo relatado desde a fase neonatal a animais com idade avançada. O linfoma em cavalos é uma doença que apresenta diferenças entre indivíduos incluindo sinais clínicos, curso da doença, resultados laboratoriais e achados patológicos. Os sinais clínicos variam de acordo com a localização da neoplasia, porém os mais comuns são depressão, perda de peso progressiva e linfadenopatia, podem estar associados com edema ventral, angústia respiratória, febre, anemia, cólica branda ou diarréia. Os linfomas são classificados anatomicamente em generalizado ou multicêntrico, alimentar ou intestinal, mediastinal ou tímica e cutânea. Podem ocorrer síndromes paraneoplásicas e geralmente é realizada a eutanásia devido à debilidade em que o animal se encontra. Este estudo é um relato de caso sobre um cavalo macho encaminhado para o Setor de Grandes Animais do Hospital Veterinário da Universidade Federal do Paraná com histórico e sinais de pneumonia, anorexia e emagrecimento progressivo. Ao exame físico foram observadas alterações clínicas como taquicardia, taquipnéia, linfadenopatia de linfonodos submandibular e pré-escapulares e edema ventral; o perfil hematológico mostrou hiperfibrinogenemia, neutrofilia e linfopenia e a biópsia aspirativa dos linfonodos alterados não foi conclusiva, porém sugestivo a linfoma. O animal veio a óbito 13 dias após a internação por piora do quadro sendo realizado o exame de necropsia. Posteriormente, com os achados necroscópicos e histopatológicos foi confirmado o diagnóstico de linfoma multicêntrico. Palavras-chave: equinos, linfadenopatias, neoplasias hemolinfáticas. AbstractRelatively hemolymphatic tumors are uncommon in horses, but the lymphoma is the most frequent being reported from the early neonatal animals until advanced age. Lymphoma in horses is a disease which differs between animals including clinical signs, illness course, laboratory and pathologic findings. Clinical signs vary depending on tumor location, but the most common are depression, progressive weight loss and lymphadenopathy, may be associated with ventral edema, respiratory distress, fever, anemia, mild colic and diarrhea. Lymphomas are anatomically classified in generalized or multicentric, alimentary or intestinal, mediastinal or thymic and cutaneous. Paraneoplastic syndromes can occur and is usually performed euthanasia by the weakness of the animal. This study is a case report of a male horse sent to the Department of Large Animal Veterinary Hospital of Federal University of Paraná with a history and signs of pneumonia, anorexia and progressive weight loss. On physical examination, clinical changes such as tachycardia, tachypnea, lymphadenopathy, submandibular and pre-scapular lymph nodes and ventral edema were present. The blood profile showed hyperfibrinogenemia, neutrophilia and lymphopenia. Abnormal lymph node aspiration biopsy was inconclusive, but suggestive of lymphoma. The animal died 13 days after hospital...

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Section: Introductionunclassified

Linfoma multicêntrico em cavalo: relato de caso

Silva¹,

Deconto²,

Dornbusch³

et al. 2012

RBCV

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“…Neoplastic processes are relevant causes for veterinary care in equids [1] and the use of a combination of diagnostic techniques can provide greater security in the final result [6]. Thus, the early diagnosis of the neoplasm is important for the correct treatment and prognosis.…”

Section: Discussionmentioning

confidence: 99%

Cytological Aspects of Equine Oral Fibrosarcoma

Martins

Rossato

Abrão

et al. 2019

Acta Scientiae. Vet.

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Background:Although mesenchymal neoplasms are prominent in horses due to the occurrence of sarcoids, other neoplasms may occur. Fibrosarcoma in horses is uncommon, notwithstanding, few studies have performed diagnostic techniques. It is presumed, therefore, that other diagnostic methodologies should be explored. In this sense, fine needle aspiration cytology (FNAC) emerges as an effective, low-cost, and minimally invasive method to identify tumors in these animals. The objective of this study was to describe the use of FNAC in the diagnosis of oral fibrosarcoma in horses. Once fibrosarcoma is an aggressive tumor, it is important to validate effective techniques for an early diagnosis. Case: A 10-year-old male Quarter Horse was treated, with a clinical complaint of increased volume in the right maxillary region. This tumor occupied about ¼ of the hard palate area. Hyporexia, hypodipsia, mild dehydration, and weight loss were observed at clinical examination. Complementary examinations were requested, and an extensive radiolucent mass with an indication of bone involvement was observed on the radiograph. The hemogram revealed normocytic normochromic anemia, in addition to lymphopenia. In the serum biochemistry test, AST (aspartate aminotransferase) and creatinine were slightly increased. FNAC showed a malignant mesenchymal neoplasm, possibly fibrosarcoma. Due to its clinical worsening and lack of response to supportive treatment, humanitarian euthanasia was performed. Finally, a histopathological examination confirmed the oral fibrosarcoma suggested by FNAC. Discussion: The early diagnosis of neoplasms is important for its correct treatment, as well as the prognosis. In this way, the combined use of complementary tests helps in the resolution of the case. FNAC is still little used in the examination routine in horses. In the present report, this test demonstrated efficacy since it revealed mesenchymal cells compatible with fibroblasts, in addition to malignancy characteristics such as cells with anisocytosis, cytoplasmic basophilia, macrocariosis in some cells, round to elongate nuclei, coarse chromatin, prominent nucleoli, and a discrete eosinophilic amorphous matrix between the cells. The other laboratory findings were consistent with the disease. Normocytic normochromic anemia is found in chronic conditions, such as neoplasms, and lymphopenia may be a finding in stress situations. The anatomical location of the tumor and the bone involvement made surgical treatment impossible. With this, we sought to alleviate the patient's discomfort with supportive therapy, which in situations of chronicity is not always effective, as in the case described. In conclusion, FNAC can be used to differentiate malignant tumors from those considered benign, as well as in the identification of tumor groups. Despite the high predictive value of FNAC, histopathological examination was fundamental for the categorization of the neoplasia. Therefore, it is recommended to confirm the FNAC result by histopathology since equine fibrosarcoma ...

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“…La presencia de coilocitos sugirió el origen viral de los casos diagnosticados (11,12). Estos hallazgos indican que probablemente las condiciones medioambientales no desempeñarán un papel muy importante como lo harán la predisposición genética, la condición sanitaria de los animales y la etiología viral de estas neoplasias (15,18).…”

Section: Discussionunclassified

Estudio microscópico de dermatopatías en equinos de la sabana de Bogotá, Colombia

Londoño¹,

Miguel²,

Martínez³

et al. 2014

Rev. Med. Vet.

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Los caballos ocupan el tercer lugar en presentación de enfermedad dermatológica luego de los perros y los gatos; sin embargo, es escasa la información que se dispone sobre los aspectos demográficos de las enfermedades dermatológicas en esta especie en Colombia. El objetivo del presente trabajo fue hacer un estudio preliminar para conocer las enfermedades dermatológicas que afectan a los equinos en la sabana de Bogotá, mediante biopsia, raspado de piel y tricograma, con el fin de acercarse al diagnóstico y así establecer medidas terapéuticas y profilácticas que beneficien la salud animal y la productividad en explotaciones comerciales. Se recibieron 39 biopsias de piel, 39 raspados cutáneos y 37 muestras de cortezas pilosas de equinos con algún tipo de dermatopatía, las cuales fueron procesadas en el Laboratorio de Histopatología de la Universidad de La Salle. Las lesiones inflamatorias se clasificaron teniendo en cuenta los patrones histológicos de enfermedad inflamatoria de la piel y los tumores, según la clasificación de la Organización Mundial de la Salud (OMS). Las dermatitis alérgicas fueron las patologías más frecuentes (46 %) y las neoplasias se observaron en el 13 % de los casos; en el 10 % de los raspados cutáneos se observaron esporas de hongos en posición ectotrix. En uno de los tricogramas se identificaron ácaros del género Psoroptes spp. Este es el primer reporte de diagnóstico microscópico de enfermedades dermatológicas en equinos en el país con el fin de contribuir al conocimiento demográfico de las dermatopatías en la sabana de Bogotá.

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Ocorrência de neoplasias em 15 anos de atendimento hospitalar de equídeos

Cited by 8 publications

References 6 publications

Linfoma multicêntrico em cavalo: relato de caso

Linfoma multicêntrico em cavalo: relato de caso

Cytological Aspects of Equine Oral Fibrosarcoma

Estudio microscópico de dermatopatías en equinos de la sabana de Bogotá, Colombia

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