Hemangioma cavernoso cerebral em cão / Cerebral cavernous hemangioma in a dog

Background: Cerebral cavernous hemangioma is a rare neoplasm of vascular origin in the brain, characterized by abnormally dilated vascular channels surrounded by endothelium without muscle or elastic fibers. Presumptive diagnosis isperformed by magnetic resonance or computed tomography (CT) scanning and can be confirmed by histopathology. Theprognosis of intracranial cavernous hemangioma is poor, with progression of clinical signs culminating in spontaneousdeath or euthanasia. The purpose of this paper is to report a case of cerebral cavernous hemangioma in a dog, presentingthe clinical findings, tomographic changes, and pathological findings.Case: This case involved a 2-year-old medium sized mixed breed female dog presenting with apathy, hyporexia, ataxia,bradycardia, dyspnea, and seizure episodes for three days. Hemogram and serum biochemistry of renal and hepatic function and urinalysis did not reveal any visible changes. CT scanning was also performed. The scans revealed a hyperdensenodule of 15.9 x 14 mm, with well defined borders, and a hypodense halo without post-contrast enhancement and masseffect in the right parietal lobe was observed in both transverse and coronal sections. Based on the image presented in theCT scans, the nodule was defined as a hemorrhagic brain lesion. The animal died after a seizure. The right telencephalonwas subjected to necropsy, which revealed a reddish-black wel-defined nodule 1.7 cm in diameter extending from theheight of the piriform lobe to the olfactory trine at the groove level and extending towards the lateral ventricle, with slightcompression and deformation of the thalamus but no other macroscopic alterations in the other organs. The histopathologyindicated that this nodular area in the encephalus contained moderate, well-delimited but unencapsulated cellularity, composed of large vascular spaces paved with endothelial cells filled with erythrocytes, some containing eosinophilic fibrillarmaterial ...

Hemangioma cavernoso cerebral em cão / Cerebral cavernous hemangioma in a dog

Background: Cerebral cavernous hemangioma is a rare neoplasm of vascular origin in the brain, characterized by abnormally dilated vascular channels surrounded by endothelium without muscle or elastic fibers. Presumptive diagnosis isperformed by magnetic resonance or computed tomography (CT) scanning and can be confirmed by histopathology. Theprognosis of intracranial cavernous hemangioma is poor, with progression of clinical signs culminating in spontaneousdeath or euthanasia. The purpose of this paper is to report a case of cerebral cavernous hemangioma in a dog, presentingthe clinical findings, tomographic changes, and pathological findings.Case: This case involved a 2-year-old medium sized mixed breed female dog presenting with apathy, hyporexia, ataxia,bradycardia, dyspnea, and seizure episodes for three days. Hemogram and serum biochemistry of renal and hepatic function and urinalysis did not reveal any visible changes. CT scanning was also performed. The scans revealed a hyperdensenodule of 15.9 x 14 mm, with well defined borders, and a hypodense halo without post-contrast enhancement and masseffect in the right parietal lobe was observed in both transverse and coronal sections. Based on the image presented in theCT scans, the nodule was defined as a hemorrhagic brain lesion. The animal died after a seizure. The right telencephalonwas subjected to necropsy, which revealed a reddish-black wel-defined nodule 1.7 cm in diameter extending from theheight of the piriform lobe to the olfactory trine at the groove level and extending towards the lateral ventricle, with slightcompression and deformation of the thalamus but no other macroscopic alterations in the other organs. The histopathologyindicated that this nodular area in the encephalus contained moderate, well-delimited but unencapsulated cellularity, composed of large vascular spaces paved with endothelial cells filled with erythrocytes, some containing eosinophilic fibrillarmaterial ...(AU)

Estudo descritivo sobre a síndrome de ansiedade de separação (SAS) em cães / A descriptive study on anxiety separation syndrome (ASS) in dogs / Estudio descriptivo sobre el síndrome de ansiedad por separación (SAS) en perros

O objetivo desta pesquisa foi verificar a ocorrência da síndrome de ansiedade de separação (SAS) na população de cães de Sinop, MT. Para identificar o problema, foi desenvolvido um questionário que foi aplicado a proprietários ou guardiões de cem cães, machos e fêmeas, de raças puras e sem raça definida (SRD), oriundos de clínicas do referido município e do Hospital Veterinário da UFMT – campus Sinop. Os resultados obtidos demonstraram uma prevalência de 28% de cães positivos para a SAS. Os sinais mais frequentes foram vocalização excessiva (60,7%), micção inapropriada (50%), destruição de objetos (35,7%) e defecação inapropriada (17,8%). Todos os animais considerados positivos apresentavam hipervinculação aos seus donos e nove (32,1%) sofriam também de transtorno compulsivo. Tais resultados indicam que existe uma prevalência significativa de SAS na população de Sinop, devendo ser elaboradas novas pesquisas para mensurar o seu impacto sobre os animais e a sociedade.

The aim of this study was to verify the occurrence of anxiety separation syndrome (ASS) in dogs from Sinop/MT, Brazil. For this purpose, a questionnaire was developed and applied to owners of one hundred male and female dogs of both pure breed and mixed breeds from local veterinary clinics or from the Veterinary Hospital of UFMT, Campus Sinop. Results showed 28% prevalence of ASS among the studied population. Most frequent symptoms were excessive vocalization (60.7%), inappropriate urination (50%), destructive behavior (35.7%) and inappropriate defecation (17.8%). All positive dogs showed owner hyperattachment, and 32.1% (9 animals) had compulsive disorder. Results indicated a significant prevalence of ASS in dogs from Sinop; further research should be developed to measure its impact on animals and human society.

El objetivo de este trabajo fue verificar la incidencia del síndrome de ansiedad por separación (SAS) en la población de perros de la municipalidad de Sinop, Mato Groso - Brasil. Para identificar el problema se desarrolló un cuestionario al que fueron sometidos los propietarios o responsables de cien perros, tanto machos como hembras, de razas puras y mestizos, atendidos en consultorios del referido municipio y en el Hospital Veterinario de la UFMT del campus Sinop. Los resultados obtenidos mostraron una prevalencia de un 28% de perros positivos al SAS. Los signos más frecuentemente encontrados fueron vocalización excesiva (60,7%), micción inapropiada (50%), destrucción de objetos (35.7%) y defecación inadecuada (17.8%). Todos los animales considerados positivos, presentaban hipervinculación con sus dueños, y nueve de ellos (32,1%) sufrían también de trastornos compulsivos. Estos resultados indican que existe una prevalencia significativa del SAS en el municipio de Sinop, y que deberían ser realizadas nuevas investigaciones para medir su impacto sobre los animales y la sociedad.

Estudo descritivo sobre a síndrome de ansiedade de separação (SAS) em cães / A descriptive study on anxiety separation syndrome (ASS) in dogs / Estudio descriptivo sobre el síndrome de ansiedad por separación (SAS) en perros

O objetivo desta pesquisa foi verificar a ocorrência da síndrome de ansiedade de separação (SAS) na população de cães de Sinop, MT. Para identificar o problema, foi desenvolvido um questionário que foi aplicado a proprietários ou guardiões de cem cães, machos e fêmeas, de raças puras e sem raça definida (SRD), oriundos de clínicas do referido município e do Hospital Veterinário da UFMT campus Sinop. Os resultados obtidos demonstraram uma prevalência de 28% de cães positivos para a SAS. Os sinais mais frequentes foram vocalização excessiva (60,7%), micção inapropriada (50%), destruição de objetos (35,7%) e defecação inapropriada (17,8%). Todos os animais considerados positivos apresentavam hipervinculação aos seus donos e nove (32,1%) sofriam também de transtorno compulsivo. Tais resultados indicam que existe uma prevalência significativa de SAS na população de Sinop, devendo ser elaboradas novas pesquisas para mensurar o seu impacto sobre os animais e a sociedade.(AU)

The aim of this study was to verify the occurrence of anxiety separation syndrome (ASS) in dogs from Sinop/MT, Brazil. For this purpose, a questionnaire was developed and applied to owners of one hundred male and female dogs of both pure breed and mixed breeds from local veterinary clinics or from the Veterinary Hospital of UFMT, Campus Sinop. Results showed 28% prevalence of ASS among the studied population. Most frequent symptoms were excessive vocalization (60.7%), inappropriate urination (50%), destructive behavior (35.7%) and inappropriate defecation (17.8%). All positive dogs showed owner hyperattachment, and 32.1% (9 animals) had compulsive disorder. Results indicated a significant prevalence of ASS in dogs from Sinop; further research should be developed to measure its impact on animals and human society.(AU)

El objetivo de este trabajo fue verificar la incidencia del síndrome de ansiedad por separación (SAS) en la población de perros de la municipalidad de Sinop, Mato Groso - Brasil. Para identificar el problema se desarrolló un cuestionario al que fueron sometidos los propietarios o responsables de cien perros, tanto machos como hembras, de razas puras y mestizos, atendidos en consultorios del referido municipio y en el Hospital Veterinario de la UFMT del campus Sinop. Los resultados obtenidos mostraron una prevalencia de un 28% de perros positivos al SAS. Los signos más frecuentemente encontrados fueron vocalización excesiva (60,7%), micción inapropiada (50%), destrucción de objetos (35.7%) y defecación inadecuada (17.8%). Todos los animales considerados positivos, presentaban hipervinculación con sus dueños, y nueve de ellos (32,1%) sufrían también de trastornos compulsivos. Estos resultados indican que existe una prevalencia significativa del SAS en el municipio de Sinop, y que deberían ser realizadas nuevas investigaciones para medir su impacto sobre los animales y la sociedad.(AU)