Brazilian Journal of Veterinary Pathology最新文献

Enzootic bovine leukosis in a cow 牛的地方性白血病

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p71-77

I. Santos, L. Henker, R. Kemper, Mariana Bertolini, D. Driemeier, S. Pavarini

{"title":"Enzootic bovine leukosis in a cow","authors":"I. Santos, L. Henker, R. Kemper, Mariana Bertolini, D. Driemeier, S. Pavarini","doi":"10.24070/bjvp.1983-0246.v16i1p71-77","DOIUrl":"https://doi.org/10.24070/bjvp.1983-0246.v16i1p71-77","url":null,"abstract":"Clinical History: A 5-year-old, Holstein-Friesian dairy cow was evaluated by a veterinary practitioner for a 30-day history of unilateral exophthalmos (Fig. 1). After 15 days, the cow presented lameness followed by progressive weight loss and pelvic limbs paresis, culminating in persistent sternal recumbency (Fig. 2). The superficial inguinal lymph nodes were enlarged. Due to the poor prognosis, the cow was euthanized and submitted to a postmortem examination. Gross Findings: The cow was in poor body condition with mild amounts of subcutaneous and visceral fat stores. The oral and conjunctival mucous membranes were pale. There was severe exophthalmos in the right eye, caused by a soft, homogenous, white to yellow mass (6 cm in diameter) (Fig. 3) in the retrobulbar space. Similar irregular masses were seen in the left renal pelvis, partially effacing the renal parenchyma, and in the epidural space, circumferentially surrounding the pachymeninges (extradural location) (Fig. 4) of the lumbar segment of the spinal cord. The superficial inguinal lymph nodes (supramammary) were markedly enlarged and, on the cut surface, had homogenous white to yellow discoloration and loss of the corticomedullary junction. Multifocal areas of the abomasum wall were moderately thickened and expanded by a soft, homogenous, white to yellow masses. No significant alterations were observed in other organs.","PeriodicalId":9223,"journal":{"name":"Brazilian Journal of Veterinary Pathology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41321168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equine herpesvirus myeloencephalopathy 马疱疹病毒性脊髓性脑病

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p85-88

Teodoro Tgw, Mendonça Fs, A. J

引用次数: 0

First report of Psittacid Avipoxvirus in Agapornis in Mexico 墨西哥Agapornis首次报告Psittacid Avipoxvirus

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p64-70

F. Sánchez-Godoy, Irely Ledesma, Verónica de Oca, R. Cervantes, F. Chávez-Maya, Gary Garcí-Espinosa

引用次数: 1

Warty Dyskeratoma with involvement of multiple hair follicles in a dog 犬多发毛囊受累的Warty角化不良

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p60-63

Luiz Augusto Siqueira Silva, L. Conti

引用次数: 0

Vitamin A deficiency in peafowl with secondary visceral urate deposition 继发内脏尿酸盐沉积的孔雀维生素A缺乏症

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p78-84

Erin E. Edwards, Laura Rice

{"title":"Vitamin A deficiency in peafowl with secondary visceral urate deposition","authors":"Erin E. Edwards, Laura Rice","doi":"10.24070/bjvp.1983-0246.v16i1p78-84","DOIUrl":"https://doi.org/10.24070/bjvp.1983-0246.v16i1p78-84","url":null,"abstract":"Clinical History: In a flock of approximately 180 peafowl, several were showing signs of a possible upper respiratory infection and had mouth gaping per the owner. They were also reported to be lethargic, to have excessive phlegm or mucus in the mouths, had trouble swallowing, and were losing weight. They were being treated with Baytril and Metronidazole with no improvement. Approximately eight had died. Five peafowl were submitted for necropsy and diagnostic work-up, including three peahens and two peacocks. Gross Findings: In all five peafowl, the oral cavity contained excess mucus. The oral, crop, and esophageal mucosa had disseminated, smooth, raised, round nodules with a central pore. The proximal esophagus was the most severely affected site. The nodules measured on average ~2 mm in diameter. Upon squeezing some of these nodules, pale tan, caseous material could be expressed. In all five peafowl, the heart was diffusely coated by abundant white, chalky, urate material. Similar though lesser amounts of urates partially coated the surface of the liver and other coelomic membranes. In one peahen, the ureters were multifocally distended and contained consolidated accumulations of tan to pale yellow, caseous material. The kidneys in this bird were pale.","PeriodicalId":9223,"journal":{"name":"Brazilian Journal of Veterinary Pathology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42405931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concomitant occurrence of multicentric hemangiosarcoma and histiocytic sarcoma in a dog 犬并发多中心血管肉瘤和组织细胞肉瘤1例

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p54-59

B. Gouveia, Isabela F. S. Perossi, M. D. da Silva, P. Martinelli, F. Ramos, A. D. de Nardi, R. Vasconcelos

{"title":"Concomitant occurrence of multicentric hemangiosarcoma and histiocytic sarcoma in a dog","authors":"B. Gouveia, Isabela F. S. Perossi, M. D. da Silva, P. Martinelli, F. Ramos, A. D. de Nardi, R. Vasconcelos","doi":"10.24070/bjvp.1983-0246.v16i1p54-59","DOIUrl":"https://doi.org/10.24070/bjvp.1983-0246.v16i1p54-59","url":null,"abstract":"Histiocytic sarcoma (HS) is uncommon malignant neoplasia of round cells with marked predilection in Rottweiler and Bernese Mountain. The disseminated form, which mainly affects the spleen, lungs, lymph nodes, bone marrow, skin, and subcutis, presents a quick and aggressive clinical behavior. Hemangiosarcoma (HAS) is a malignant neoplasm of endothelial vessel cells commonly reported to affect the right atrium of dogs' hearts. A male Rottweiler, five years old, presented flaccid paraplegia and progressive muscular atrophy in the temporal, masseter, and limbs muscles; Due to the clinical stage of the animal, euthanasia was conducted. During the necroscopic examination, it was noticed that several masses presented different sizes; some were whitish, and others were reddish and spread in multiple organs (lungs, heart, spleen, stomach, kidneys, brain, medulla, skeletal muscle, and pre-scapular lymph node). Microscopically, in some organs such as the stomach, right ventricle, lungs, and medulla, it was noticed a proliferation of myeloid cells, highly cellular, with poor demarcation, no encapsulation, and with the infiltrative growth pattern of cells with high pleomorphism. Numerous tumoral emboli were observed in the spleen, brain, skeletal muscle, and lymph node. These cells were submitted for immunohistochemistry and were positive for CD18 (HS antibody). In the right atrium, liver, and kidney it was observed malignant and infiltrative endothelial proliferation (HSA) and emboli in the medulla. Therefore, we conclude that both neoplasms (HS and HSA) cause the animal's paraplegia due to their embolism and metastasis to the spinal cord and skeletal muscle.","PeriodicalId":9223,"journal":{"name":"Brazilian Journal of Veterinary Pathology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47600542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infectious diseases of neotropical primates 新热带灵长类动物的传染病

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p1-34

A. Oliveira, Renato L. Santos

引用次数: 1

Age, and non-age-related cytoarchitectural changes in the brain of some Nigerian cattle 一些尼日利亚牛大脑中年龄和非年龄相关的细胞结构变化

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p35-45

J. Shawulu, J. Hambolu, James Olopade3, S. Ojo, A. Balkema-Buschmann, Reiner Ulrich

{"title":"Age, and non-age-related cytoarchitectural changes in the brain of some Nigerian cattle","authors":"J. Shawulu, J. Hambolu, James Olopade3, S. Ojo, A. Balkema-Buschmann, Reiner Ulrich","doi":"10.24070/bjvp.1983-0246.v16i1p35-45","DOIUrl":"https://doi.org/10.24070/bjvp.1983-0246.v16i1p35-45","url":null,"abstract":"Brain is the most vulnerable organ in the body to the ageing processes which operates at variable levels between organs and species. In this study we examine brains histopathologically for architectural changes in four Nigerian cattle breeds. Brains from 246 cattle (Bunaji=80, Muturu=78, Rahaji=62 and Sokoto Gudali=26), aged 1–≥12years were examined at 8 different neuroanatomical locations. All the cattle used were obtained from Abattoir in Ibadan, Nigeria. They were examined at ante-mortem and those without clinical signs suggestive of neurological disease were sampled. Major changes observed were intracellular accumulation of substances (61.4%), neuronal and or axonal degenerations and loss (51.6%), perivascular cuffing (50.0%), extracellular accumulation of substances (29.7%), hypercellularity (19.1%) and spongy state (0.4%), malacia (0.0%), demyelination (0.0%) in 233 cattle. Intraneuronal vacuolations (35%), lipofuscin accumulation (42%), axonal spheroids (50%), inflammatory changes (50%), and brain sand (22%). Although perivascular cuffing was high, there was low incidence of lymphocytic infiltration in the pineal gland in both sexes. Intracellular accumulation of substances, neuronal and or axonal degenerations and loss, and extracellular accumulation of substances display levels of significant changes with age (p<0.0001). Changes starts at the age of 2 years in life in these breeds of cattle due probably to the adverse stress exerted by the tropical climate. The description of histological findings in the brain of symptomless cattle in the present study provides a useful background for diagnostic bovine neuropathology in the tropics.","PeriodicalId":9223,"journal":{"name":"Brazilian Journal of Veterinary Pathology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43751051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fibroblastic osteosarcoma in a guinea pig (Cavia porcellus) 豚鼠成纤维细胞性骨肉瘤（Cavia porcellus）

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p46-50

Joerg Vetter, L. Maidana, Roger Gonzalez-Vatteone, Cesar Brítez

引用次数: 0

Congenital renal hypoplasia and contralateral kidney failure in a giant otter (Pteronura brasiliensis) ex situ in Southeastern Brazil 巴西东南部一只巨大水獭（巴西翼龙）的先天性肾发育不全和对侧肾衰竭

Brazilian Journal of Veterinary Pathology Pub Date : 2023-03-31 DOI: 10.24070/bjvp.1983-0246.v16i1p51-53

V. Ribeiro, Hanna S Kokubun, H. Riva, Viviane Nemer, M. Bianchi, A. D. da Costa, R. Teixeira

{"title":"Congenital renal hypoplasia and contralateral kidney failure in a giant otter (Pteronura brasiliensis) ex situ in Southeastern Brazil","authors":"V. Ribeiro, Hanna S Kokubun, H. Riva, Viviane Nemer, M. Bianchi, A. D. da Costa, R. Teixeira","doi":"10.24070/bjvp.1983-0246.v16i1p51-53","DOIUrl":"https://doi.org/10.24070/bjvp.1983-0246.v16i1p51-53","url":null,"abstract":"Renal hypoplasia is incomplete development of the kidneys, in which fewer than normal numbers of nephrons are present at birth. This report is the first of these conditions in mustelids. A female adult giant otter (Pteronura brasiliensis), ex situ, presented clinically an unusual behavior with prostration, anorexia, hiding in the shelter, ataxia, paraparesis, and death in a clinical course of one day. At the postmortem exam, the left kidney was markedly enlarged and pale and the right kidney was severely reduced and had mild to moderate capsular thickening. Histologically, the left kidney had mineralization, proliferation of fibrous connective tissue and a mild neutrophilic infiltrate. The right kidney presented a reduced number of glomeruli, tubular atrophy and an increase in fibrous connective tissue, which were findings compatible with congenital kidney hypoplasia. Due the clinical condition of the animal, gross and microscopic findings, the cause of death was established as kidney failure induced by renal hypoplasia.","PeriodicalId":9223,"journal":{"name":"Brazilian Journal of Veterinary Pathology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48932353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0