Distribution of caprine arthritis encephalitis virus provirus, RNA, and antigen in the reproductive tract of one naturally and seven experimentally infected bucks.

Caprine arthritis encephalitis is a worldwide, multisystemic disease caused by a small ruminant lentivirus. Although the main route of transmission is oral, detection of proviral DNA of the caprine arthritis encephalitis virus (CAEV) in caprine semen has been previously described. However, the presence of viral antigens in the male reproductive tract has apparently never been reported. The objective was to study lesions in the buck reproductive system and to detect, in these tissues, the presence of proviral DNA, viral RNA and CAEV antigens. Tissues from eight CAEV-infected bucks (one naturally and seven experimentally infected) were analyzed by histopathology, nested polymerase chain reaction, reverse transcriptase-polymerase chain reaction, and immunohistochemistry. Interstitial pneumonia, synovitis, and lesions in the male reproductive tract were detected in some of the bucks. Proviral DNA was detected in the lungs and joints as well as in the reproductive systems of all animals, whereas viral RNA was detected only in the genital tract of the naturally infected buck. Viral antigens were immunostained in most of the organs of the male reproductive tract. This report was apparently the first to clearly demonstrate CAEV antigen expression in the male reproductive tract, which indicates the possibility of venereal transmission of CAEV.

iptet / Pulmonary lobar torsion in a Whippet dog

A torção de lobo pulmonar (TLP) consiste na rotação do pulmão, ou de um de seus lobos, ao longo deseu eixo, com consequente torção de brônquios e vasos pulmonares na região do hilo. É considerada umadoença respiratória rara, que acomete cães e gatos. Qualquer fator que aumente a mobilidade pulmonarpode predispor a TLP, incluindo-se as efusões pleurais. Contudo, a TLP também pode ser idiopáticaprincipalmente em cães de grande porte com cavidade torácica profunda, como nas raças Afghan Hounde Whippet, embora a TLP já tenha sido relatado em cães das raças Pug e Jack Russel Terrier. Este trabalhoobjetiva fazer um relato de caso de TLP e uma sucinta revisão de literatura sobre características relevantesda TLP, principalmente de cães. Uma cadela de 10 anos de idade da raça Whippet foi encaminhadapara necropsia no Setor de Patologia da Escola de Veterinária da UFMG, na qual foi observada rotaçãode 180º do lobo pulmonar médio direito. Apesar de ser considerada uma condição rara, a TLP deve serconsiderada no diagnóstico diferencial por clínicos veterinários ao atender animais com sinais clínicosde dispneia.(AU)

Pulmonary lobe torsion (PLT) is the rotation of the lung or one of its lobes along its axis, with consequentobstruction of the bronchi and pulmonary vessels in the hilar region. It is considered a rare respiratorydisease, with few reports in dogs and cats. Any mechanism that increases the mobility of the lungs canpredispose to PLT, including pleural effusions. PLT may also be idiopathic, especially in large dogs withdeep thoracic cavity, such as Afghan Hounds and Whippets. However, it has already been reported insmall breed dogs including Pug and Jack Russell Terrier. This report aims to describe a case report ofPLT, and provide a brief review of the literature including relevant aspects of PLT, especially in dogs.A 10-years-old female Whippet was sent to necropsy at the Pathology Division of the Veterinary Schoolat UFMG, where it was diagnosed with a 180º rotation of the right middle lobe. Although considered arare condition, PLT must be considered in the differential diagnosis by veterinarians facing animals withclinical signs of dyspnea.(AU)

iptet / Pulmonary lobar torsion in a Whippet dog

A torção de lobo pulmonar (TLP) consiste na rotação do pulmão, ou de um de seus lobos, ao longo deseu eixo, com consequente torção de brônquios e vasos pulmonares na região do hilo. É considerada umadoença respiratória rara, que acomete cães e gatos. Qualquer fator que aumente a mobilidade pulmonarpode predispor a TLP, incluindo-se as efusões pleurais. Contudo, a TLP também pode ser idiopáticaprincipalmente em cães de grande porte com cavidade torácica profunda, como nas raças Afghan Hounde Whippet, embora a TLP já tenha sido relatado em cães das raças Pug e Jack Russel Terrier. Este trabalhoobjetiva fazer um relato de caso de TLP e uma sucinta revisão de literatura sobre características relevantesda TLP, principalmente de cães. Uma cadela de 10 anos de idade da raça Whippet foi encaminhadapara necropsia no Setor de Patologia da Escola de Veterinária da UFMG, na qual foi observada rotaçãode 180º do lobo pulmonar médio direito. Apesar de ser considerada uma condição rara, a TLP deve serconsiderada no diagnóstico diferencial por clínicos veterinários ao atender animais com sinais clínicosde dispneia.

Pulmonary lobe torsion (PLT) is the rotation of the lung or one of its lobes along its axis, with consequentobstruction of the bronchi and pulmonary vessels in the hilar region. It is considered a rare respiratorydisease, with few reports in dogs and cats. Any mechanism that increases the mobility of the lungs canpredispose to PLT, including pleural effusions. PLT may also be idiopathic, especially in large dogs withdeep thoracic cavity, such as Afghan Hounds and Whippets. However, it has already been reported insmall breed dogs including Pug and Jack Russell Terrier. This report aims to describe a case report ofPLT, and provide a brief review of the literature including relevant aspects of PLT, especially in dogs.A 10-years-old female Whippet was sent to necropsy at the Pathology Division of the Veterinary Schoolat UFMG, where it was diagnosed with a 180º rotation of the right middle lobe. Although considered arare condition, PLT must be considered in the differential diagnosis by veterinarians facing animals withclinical signs of dyspnea.

Mastitis Accompanied by Lymphadenitis in a Dog Caused by Staphylococcus hyicus

Canine mastitis is an infrequent condition that occurs most commonly in the postpartum period due to ascending bacterial infection. This report aims to describe clinical, pathological and bacteriological aspects of mastitis caused by Staphylococcus hyicus accompanied by disseminated superficial lymphadenitis in a dog. In the postpartum period the animal showed clinical signs of prostration, dyspneia, and unresponsivess to environment. At physical examination, hypothermia, dehydration and subcutaneous edema of the limbs were detected. Gross and histologic features were consistent with marked purulent and necro-hemorrhagic mastitis accompanied by lymphangitis, lymphadenitis and thromboembolic pneumonia. Isolation and biochemical identification confirmed the infection by Staphylococcus hyicus. This study shows that one must be attentive not only of the risk of uterine infection postpartum, but also of the possibility of mammary gland infection.(AU)

Bilateral Giant Pulmonary Emphysematous Bullae in a Calf

Bilateral giant pulmonary emphysematous bullae were diagnosed in a calf. The necropsy revealed two gasfilled bullae completely involving the right and left diaphragmatic pulmonary lobes. Histologically, the outer surface of the giant bullae was made of visceral pleura while the inner layer consisted of the adjacent lung, which presented signs of atelectasis or emphysema. Aspiration bronchopneumonia was observed in the right and left apical lobes. The animal died as the result of acute respiratory failure.(AU)

Consensus for the Diagnosis, Prognosis and Treatment of Canine Mammary Tumors

The purpose of this paper is to establish criteria that could guide the diagnosis, prognosis and treatment of canine mammary neoplasias. It was elaborated during the Mammary Pathology Meeting: Diagnosis, Prognosis and Treatment of the Canine Mammary Neoplasm, held on November 6th and 7th, 2010 in Belo Horizonte ­ MG, Brazil, sponsored by the Laboratory of Comparative Pathology ­ UFMG, with the support of the Brazilian Association of Veterinary Pathology (ABPV) and Brazilian Association of Veterinary Oncology (ABROVET). Academics from several regions of Brazil were present and contributed to this work.(AU)

Consensus for the diagnosis, prognosis and treatment of canine mammary tumors

The purpose of this paper is to establish criteria that could guide the diagnosis, prognosis and treatment of canine mammary neoplasias. It was elaborated during the Mammary Pathology Meeting: Diagnosis, Prognosis and Treatment of the Canine Mammary Neoplasm, held on November 6th and 7th, 2010 in Belo Horizonte MG, Brazil, sponsored by the Laboratory of Comparative Pathology UFMG, with the support of the Brazilian Association of Veterinary Pathology (ABPV) and Brazilian Association of Veterinary Oncology (ABROVET). Academics from several regions of Brazil were present and contributed to this work. 

Bilateral giant pulmonary emphysematous bullae in a calf

Bilateral giant pulmonary emphysematous bullae were diagnosed in a calf. The necropsy revealed two gasfilled bullae completely involving the right and left diaphragmatic pulmonary lobes. Histologically, the outer surface of the giant bullae was made of visceral pleura while the inner layer consisted of the adjacent lung, which presented signs of atelectasis or emphysema. Aspiration bronchopneumonia was observed in the right and left apical lobes. The animal died as the result of acute respiratory failure.

Mastitis accompanied by lymphadenitis in a dog caused by Staphylococcus hyicus

Canine mastitis is an infrequent condition that occurs most commonly in the postpartum period due to ascending bacterial infection. This report aims to describe clinical, pathological and bacteriological aspects of mastitis caused by Staphylococcus hyicus accompanied by disseminated superficial lymphadenitis in a dog. In the postpartum period the animal showed clinical signs of prostration, dyspneia, and unresponsivess to environment. At physical examination, hypothermia, dehydration and subcutaneous edema of the limbs were detected. Gross and histologic features were consistent with marked purulent and necro-hemorrhagic mastitis accompanied by lymphangitis, lymphadenitis and thromboembolic pneumonia. Isolation and biochemical identification confirmed the infection by Staphylococcus hyicus. This study shows that one must be attentive not only of the risk of uterine infection postpartum, but also of the possibility of mammary gland infection.