Canadian Veterinary Journal-revue Veterinaire Canadienne最新文献

{"title":"Pulmonary vein stenosis secondary to a mediastinal mass in a cat.","authors":"Jeongyun Jeong, Kyungjin Yoon, Jupill Chang, Woo Joo Choi, Jae-Eun Hyun, Kidong Eom, Jaehwan Kim","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This report describes the case of a 5-year-old spayed female munchkin cat that was presented with respiratory distress. Thoracic radiography revealed pleural effusion with a diffuse interstitial lung pattern. Echocardiography identified a mass compressing the left atrium, accompanied by a turbulent jet-like flow from the pulmonary veins, with a velocity of 1.6 m/s. Computed tomography revealed a diffuse, homogenous mediastinal mass compressing the dorsal border of the left atrium and surrounding the ascending aorta and the pulmonary arteries and veins. The distal caudal pulmonary veins were dilated, indicating pulmonary vein stenosis secondary to the mediastinal mass. The caudodorsal ostium was stenotic due to the mediastinal mass compression. In addition, bilateral adrenomegaly and multifocal masses were evident in the kidneys, stomach, and cecum. Lymphoma was diagnosed in the cecal mass using cytology and PCR for antigen receptor rearrangements (PARR). This case describes clinically significant acquired pulmonary vein stenosis secondary to a mediastinal mass, which was likely responsible for the respiratory distress and pleural effusion. Key clinical message: To our knowledge, this is the first report of acquired pulmonary vein stenosis secondary to a mediastinal mass in a cat. Computed tomography could be helpful in confirming pulmonary vein stenosis and identifying its etiology.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 4","pages":"402-408"},"PeriodicalIF":0.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932428/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional secondary hyperparathyroidism and subsequent fibrous osteodystrophy in a 3-year-old dromedary camel.","authors":"Amanda J Butler, Briar Spinney, Laura Perry, Andrea Bourque, William B Stoughton","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A 3-year-old female dromedary camel was referred as an urgent case for evaluation of chronic weight loss, facial deformity, and hind-limb lameness. On initial examination, the camel was emaciated, with bilateral masses protruding from the maxillary and mandibular bones and extending into the oral cavity; the lameness could not be assessed due to recumbency. Clinical pathology and fecal flotation findings were consistent with secondary nutritional hyperparathyroidism, hypovitaminosis D, marked anemia, hypoproteinemia, and parasitism. The camel was euthanized based on the presumptive diagnosis of fibrous osteodystrophy, which was confirmed on postmortem examination. Preventative strategies were recommended for future care of dromedaries and included camel husbandry with adequate ultraviolet light exposure, adequate nutrition, appropriate anthelmintic control programs, and vitamin D supplementation. Key clinical message: The cause of fibrous osteodystrophy in camels can be multifactorial and include secondary nutritional hyperparathyroidism, hypovitaminosis D due to inadequate exposure to ultraviolet light or intake, and parasitism. Specific nutrient requirements, sun exposure, and anthelmintic protocols are essential for camels living in North America.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 4","pages":"390-395"},"PeriodicalIF":0.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932364/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Porcine circovirus type 2 (PCV2) genomic diversity in Canadian swine diagnostic samples collected from 2021 to 2023: Highlighting PCV2d and PCV2e genotypes.","authors":"Marika Koszegi, Chantale Provost, Valérie Grenier St-Sauveur, Vincent Baby, Carl A Gagnon","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>In light of growing concerns regarding potential increases in porcine circovirus type 2 (PCV2)-associated diseases in Quebec between 2021 and 2022, the objective was to characterize PCV2 genotype diversity in Canada.</p><p><strong>Samples and procedure: </strong>A total of 54 analyzed samples (2021 to 2023) either were submitted by veterinarians to the Molecular Diagnostic Laboratory (MDL) of the Centre de Diagnostic Vétérinaire de l'Université de Montréal (CDVUM) or were collected from pigs necropsied at the Quebec Ministry of Agriculture, Fishery and Food (MAPAQ) laboratories. The sick pigs from which samples were collected had various clinical signs, including those of PCV2-associated diseases. Whole-genome sequencing for PCV2 was done either by Sanger sequencing from 2 PCR amplicons covering the entire viral genome or by high-throughput sequencing.</p><p><strong>Results: </strong>The main PCV2 subtype identified as circulating in Canada was PCV2d (48.1%). Only 1 strain clustered into the PCV2e subtype (1.9%). In previous reports, PCV2b was the main subtype present in the field. However, only 5 PCV2b sequences (9.3%) were identified in 2022 and 2023.</p><p><strong>Conclusion and clinical relevance: </strong>This is apparently the first official identification of PCV2d and 2e genotypes in diseased Canadian pigs. Results also provided an overview of PCV2 strains now circulating in Canada compared to reports from 2007 to 2008.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 4","pages":"440-445"},"PeriodicalIF":0.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932374/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suspected spontaneous femoral artery rupture in an otherwise healthy American pit bull.","authors":"Andrew O Carter, Kelsey Turley","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A 1-year-old intact male American pit bull experienced a ruptured right femoral artery without trauma or coagulopathy. The dog was presented with right pelvic limb lameness and progressive subcutaneous swelling and bruising. Radiographs of the region identified soft-tissue swelling in the right thigh musculature. Bloodwork monitoring consisted of packed cell volume and total solids, which continued to decrease during hospitalization. A CT scan showed a non-contrast-enhancing possible mass effect in the region. Multiple blood and plasma transfusions were instituted while the dog was in hospital and in preparation for amputation of the limb due to concern for a neoplastic process. During surgery, upon removal of a blood clot, profuse hemorrhage from a branch of the femoral artery was noted. The artery was ligated and amputation completed without complication. After surgery, the packed cell volume returned to normal and no additional bruising was noted. Histopathologic examination of the amputated limb showed extensive subacute hemorrhage and hematoma formation. No evidence of neoplasia or inflammatory foci was noted. At a 2-week recheck, all bruising had resolved and the dog was walking well. Key clinical message: This case report describes the first diagnosis and treatment of a suspected spontaneous femoral artery rupture in veterinary medicine.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 4","pages":"385-389"},"PeriodicalIF":0.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Canine atopic dermatitis: An evolving understanding.","authors":"Jangi Bajwa","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"341-344"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891801/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic Ophthalmology.","authors":"Lynne S Sandmeyer, Marina L Leis","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"346-348"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891795/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Brucellosis in humans caused by <i>Brucella canis:</i> A scoping review.","authors":"J Scott Weese, Heather E Weese","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong><i>Brucella canis</i> is a potential cause of brucellosis in humans, but this disease has been poorly characterized.</p><p><strong>Procedure: </strong>A scoping review was completed.</p><p><strong>Results: </strong>The review yielded 24 studies that described clinical <i>B. canis</i> infection in 68 individuals. The median age was 32 y (range: 17 mo to 71 y). Fever, fatigue, headache, chills, and malaise predominated.Specific treatments were reported for 30 individuals. A tetracycline (tetracycline, doxycycline, or minocycline) was the sole treatment or part of a combination treatment for most (21/30, 70%) individuals, followed by rifampin (9/30, 30%), trimethoprim/sulfamethoxazole (7/30, 23%), and an aminoglycoside (gentamicin, streptomycin) (7/30, 23%). Clinical outcome was reported for 35 individuals. No mortalities were reported.A known or suspected source of exposure was reported for 56 cases; 45 (80%) were linked to dogs and 11 (20%) to laboratory exposure. Contact with pet dogs that had aborted or with aborted fetuses accounted for 31% of the canine exposures.</p><p><strong>Conclusion and clinical relevance: </strong>Brucellosis attributed to <i>B. canis</i> can cause a wide range of clinical presentations in humans, but was similar to brucellosis caused by other <i>Brucella</i> spp. This nonspecific nature highlights the importance of identifying risk factors for exposure, to determine whether <i>B. canis</i> infection should be considered.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"327-334"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891790/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Usefulness of transnasal volume-reduction treatment for nasal tumors by ultrasonic emulsification suction in 2 dogs.","authors":"Shinya Mizutani, Yuko Mizutani, Yoshimichi Goda, Taketoshi Asanuma, Shidow Torisu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Intranasal tumors in dogs are rare neoplastic diseases with obvious clinical signs, such as epistaxis, nasal congestion, and facial deformity. Radiation therapy is the treatment of choice but is not always accessible due to geographical location, logistics, or financial constraints. Other treatments may not be used because of various restrictions. We performed transnasal intranasal tumor volume reduction in 2 dogs with intranasal tumors; 1 dog had an adenocarcinoma and the other had a fibrosarcoma. In both cases, improvement in the quality of life (QOL), including reduced clinical signs and increased activity, was observed ~1 wk after treatment. No obvious complications were associated with this treatment. Although tumor recurrence was noted in both cases, this treatment could be applied multiple times. In conclusion, transnasal nasal tumor volume reduction is a palliative method that contributes to improvement of clinical signs and QOL. Key clinical message: We report palliative treatment of intranasal tumors in dogs. The treatment described in this report is available to most veterinarians and helps improve the QOL of dogs with nasal tumors, including improving respiratory status.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"267-272"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891793/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predictors and barriers for biosecurity uptake and risk understanding among Ontario horse owners.","authors":"Juliet A Germann, Terri L O'Sullivan, Amy L Greer, Kelsey L Spence","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to describe implementation of biosecurity practices by Ontario horse owners and investigate whether biosecurity implementation was associated with horse-owner demographic characteristics and personality traits.</p><p><strong>Procedure: </strong>A cross-sectional questionnaire was administered to a convenience sample of horse owners in Ontario to collect data on demographics, personality traits, risk comprehension, and biosecurity practices. Hierarchical cluster analysis was used to identify clusters of participants with shared personality traits, and univariable associations between clusters and demographic and biosecurity variables were examined.</p><p><strong>Results: </strong>A total of 271 participants were included in the analysis. Participants were primarily female (86%), from 25 to 44 y old (57%), and engaged in leisure riding (64%). Facility-level biosecurity plans were reported to be in place by 59% of participants, with 47% indicating that vaccinations were required within those plans. Other biosecurity practices were reported to be used less often by participants; for example, boot washing (31%) and disinfecting hands (27%). Two clusters of participants were identified according to similarities in personality traits: Cluster 1, which was characterized by high extraversion scores; and Cluster 2, which was characterized by high neuroticism scores. Cluster 1 participants were more involved in competitions, sought information from other horse owners, and received disease outbreak news from veterinarians. Cluster 2 participants exhibited higher variability in biosecurity practices implemented.</p><p><strong>Conclusion: </strong>Biosecurity is variably implemented on Ontario equine facilities, which warrants the need for ongoing efforts to increase uptake at high-risk facilities. Recommendations include fostering collaboration, providing tailored support and resources, and improving communication channels.</p><p><strong>Clinical relevance: </strong>Demographic, personality, and other lifestyle traits influence horse owners' biosecurity behaviors. Equine veterinarians may benefit from considering these factors to ensure effective communication and implementation of biosecurity plans at equine facilities.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"288-297"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891796/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retropharyngeal salivary adenomatous hyperplasia mimicking tumor metastasis in a dog.","authors":"Jeongyun Jeong, Minjoo Kim, Jaehwan Kim, Kidong Eom","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This report describes the case of a 13-year-old castrated male poodle with respiratory distress and coughing. The dog had had its right thyroid gland and ipsilateral lymph node resected because of thyroid follicular carcinoma originating in the right thyroid gland and metastasis to the ipsilateral medial retropharyngeal lymph node. The dog was initially treated for chronic bronchitis but showed no resolution of the clinical signs. Ultrasonography revealed an enlarged hypoechoic left medial retropharyngeal mass. Computed tomography further revealed an enlarged, heterogeneously enhanced left medial retropharyngeal mass with irregular margins. The mass compressed the laryngeal borders and was considered responsible for the coughing and respiratory distress. Based on the dog's history of thyroid carcinoma, metastatic lymphadenopathy of the left medial retropharyngeal lymph node was suspected, and the mass was surgically removed. Histopathologic examination revealed mild adenomatous salivary hyperplasia with duct ectasia. No evidence of neoplasm or severe inflammation was observed. The final diagnosis was salivary adenomatous hyperplasia in the retropharyngeal region. Salivary adenomatous hyperplasia can be responsible for clinical signs, depending on size and location. Differentiating salivary adenomatous hyperplasia from malignancies based on imaging findings alone can be difficult. This case demonstrated how salivary adenomatous hyperplasia may mimic malignant tumors, particularly in animals with a history of adjacent tumor malignancy. Key clinical message: To the best of our knowledge, this is the first report in a dog of salivary adenomatous hyperplasia that mimicked tumor metastasis. Differentiating between malignant and salivary adenomatous hyperplasia can be difficult using imaging findings alone. Despite being histologically benign, salivary adenomatous hyperplasia may cause clinical signs.</p>","PeriodicalId":9429,"journal":{"name":"Canadian Veterinary Journal-revue Veterinaire Canadienne","volume":"66 3","pages":"255-261"},"PeriodicalIF":0.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}