RESUMO

Background: Pythiosis is a chronic inflammatory disease that is caused by oomycete Pythium insidiosum. This illness affects several species including humans and horses. Equine is the most affected species, having no predisposition for breed, gender, or age. It is usually shown in cutaneous and subcutaneous forms, and the lesions, which grow quickly and are hard to treat, are located mainly in the extremities. The diagnosis is made via epidemiology, clinical signs, and macroscopic and microscopic aspects of the lesion. This study describes a case of cranioesophageal pythiosis in a horse, examining the epidemiological, clinical and pathological characteristics. Case: A 12-year-old male quarter horse, weighing 515 kg was taken to the Veterinary Hospital at the University Center of Espírito Santo (UNESC). The horse had an increase in volume in the cranioesophageal region, coughing, difficulty breathing, and a runny nose. On clinical examination, the horse showed an enlargement in the submandibular and retropharyngeal lymph nodes, subcutaneous edema in the larynx region, and a temperature of 38.2ºC. According to the owner, cough was recurrent and had lasted about 12 months even after treatment with different kinds of antimicrobials. On radiographic exam, there was a marked decrease in the tracheal lumen and increased soft tissue radiopacity in the region adjacent to the narrowing. The animal was taken to surgery to remove the mass, but he died because of complications during surgery. The animals owner did not allow necropsy, but a fragment of the mass in the cranioesophageal was removed and sent for histological examination. The fragment was fixed in 10% formalin and processed using routine histological analysis. Macroscopically, the mass was light yellowish and ulcerated, and it measured 7.0 × 5.0 × 5.0 cm. In the middle of the ulcerated areas, there were yellow and...(AU)

Assuntos

RESUMO

Background: Pythiosis is a chronic inflammatory disease that is caused by oomycete Pythium insidiosum. This illness affects several species including humans and horses. Equine is the most affected species, having no predisposition for breed, gender, or age. It is usually shown in cutaneous and subcutaneous forms, and the lesions, which grow quickly and are hard to treat, are located mainly in the extremities. The diagnosis is made via epidemiology, clinical signs, and macroscopic and microscopic aspects of the lesion. This study describes a case of cranioesophageal pythiosis in a horse, examining the epidemiological, clinical and pathological characteristics. Case: A 12-year-old male quarter horse, weighing 515 kg was taken to the Veterinary Hospital at the University Center of Espírito Santo (UNESC). The horse had an increase in volume in the cranioesophageal region, coughing, difficulty breathing, and a runny nose. On clinical examination, the horse showed an enlargement in the submandibular and retropharyngeal lymph nodes, subcutaneous edema in the larynx region, and a temperature of 38.2ºC. According to the owner, cough was recurrent and had lasted about 12 months even after treatment with different kinds of antimicrobials. On radiographic exam, there was a marked decrease in the tracheal lumen and increased soft tissue radiopacity in the region adjacent to the narrowing. The animal was taken to surgery to remove the mass, but he died because of complications during surgery. The animal’s owner did not allow necropsy, but a fragment of the mass in the cranioesophageal was removed and sent for histological examination. The fragment was fixed in 10% formalin and processed using routine histological analysis. Macroscopically, the mass was light yellowish and ulcerated, and it measured 7.0 × 5.0 × 5.0 cm. In the middle of the ulcerated areas, there were yellow and...

Assuntos

RESUMO

A ultrassonografia com ferramenta Doppler é o melhor método de avaliação da vascularização testicular. Objetivou-se comparar a influência do peso dos animais e do lado testicular em relação à hemodinâmica da artéria testicular de cães. Foram utilizados 17 cães machos sadios, com idades entre 8 e 48 meses. Os animais foram pesados e divididos em dois grupos: 1) 0-20 kg e 2) >20 kg, colocados em decúbito dorsal e a artéria testicular foi localizada na região de cordão espermático, com a ferramenta Doppler colorido e pulsado. Os parâmetros de velocidade do fluxo sanguíneo e os índices hemodinâmicos foram determinados em avaliação única. Utilizou-se o Modelo misto do SAS para determinar os efeitos de peso (> ou < 20kg) e lado (direito e esquerdo) das variáveis (VPS, VFD, TAMEAN, TAMAX, RI, PI, S/D, DA). A onda encontrada nessa região foi de padrão de baixa resistividade. Não foram identificados efeitos de lado nas variáveis avaliadas. O diâmetro da artéria testicular foi maior

Doppler ultrasonography is the best method to evaluate testicular vascularization. The objective of this study was to compare the influence of animal weight and testicular side on the hemodynamics of testicular artery in dogs. Seventeen healthy male dogs, aged between 8 and 48 months, were used. The animals were weighed and divided into: 1) 0-20 kg and 2)> 20 kg., Placed in dorsal decubitus position and the testicular artery was located in the region of the spermatic cord, using the pulsed and colored Doppler tool. The parameters of blood flow velocity and hemodynamic indices were determined in a single evaluation. The mixed SAS model was used to determine the effects of weight (> or < 20Kg) and side (right and left) variables (VPS, VFD, TAMEAN, TAMAX, RI, PI, S / D, DA, VFS). The wave found in this region was pattern of low resistance. No side effects were identified in the variables evaluated. Diameter of the testicular artery was higher (p<0.05) (1.86mm) in the group of animals of greater weight. In dogs, testicular diameter may be influenced by animal weight. It should be taken into account at the time of interpretation as this may influence the estimates of arterial diameter.

Assuntos

RESUMO

A ultrassonografia com ferramenta Doppler é o melhor método de avaliação da vascularização testicular. Objetivou-se comparar a influência do peso dos animais e do lado testicular em relação à hemodinâmica da artéria testicular de cães. Foram utilizados 17 cães machos sadios, com idades entre 8 e 48 meses. Os animais foram pesados e divididos em dois grupos: 1) 0-20 kg e 2) >20 kg, colocados em decúbito dorsal e a artéria testicular foi localizada na região de cordão espermático, com a ferramenta Doppler colorido e pulsado. Os parâmetros de velocidade do fluxo sanguíneo e os índices hemodinâmicos foram determinados em avaliação única. Utilizou-se o Modelo misto do SAS para determinar os efeitos de peso (> ou < 20kg) e lado (direito e esquerdo) das variáveis (VPS, VFD, TAMEAN, TAMAX, RI, PI, S/D, DA). A onda encontrada nessa região foi de padrão de baixa resistividade. Não foram identificados efeitos de lado nas variáveis avaliadas. O diâmetro da artéria testicular foi maior (AU)

Doppler ultrasonography is the best method to evaluate testicular vascularization. The objective of this study was to compare the influence of animal weight and testicular side on the hemodynamics of testicular artery in dogs. Seventeen healthy male dogs, aged between 8 and 48 months, were used. The animals were weighed and divided into: 1) 0-20 kg and 2)> 20 kg., Placed in dorsal decubitus position and the testicular artery was located in the region of the spermatic cord, using the pulsed and colored Doppler tool. The parameters of blood flow velocity and hemodynamic indices were determined in a single evaluation. The mixed SAS model was used to determine the effects of weight (> or < 20Kg) and side (right and left) variables (VPS, VFD, TAMEAN, TAMAX, RI, PI, S / D, DA, VFS). The wave found in this region was pattern of low resistance. No side effects were identified in the variables evaluated. Diameter of the testicular artery was higher (p<0.05) (1.86mm) in the group of animals of greater weight. In dogs, testicular diameter may be influenced by animal weight. It should be taken into account at the time of interpretation as this may influence the estimates of arterial diameter.(AU)

Assuntos