Erin E Edwards, Sara Wyckoff, Terry Hensley, Kiril Dimitrov, Ellen Ruth A Morris, Joyce Moore, Hunter Reed, Gabriel Gomez
{"title":"Ethmoid tumors in free-ranging white-tailed deer (<i>Odocoileus virginianus</i>).","authors":"Erin E Edwards, Sara Wyckoff, Terry Hensley, Kiril Dimitrov, Ellen Ruth A Morris, Joyce Moore, Hunter Reed, Gabriel Gomez","doi":"10.1177/03009858251361137","DOIUrl":"https://doi.org/10.1177/03009858251361137","url":null,"abstract":"<p><p>This report describes a series of ethmoid tumors in 6, free-ranging white-tailed deer (<i>Odocoileus virginianus</i>; WTD) in southwest to central Texas, which included 4 plasma cell tumors, 1 adenosquamous carcinoma, and 1 adenocarcinoma. The plasma cell tumors had a distinctive presentation with unilateral to bilateral facial masses located rostromedial to the eyes that were smooth and fluctuant. Upon dissection, these preorbital facial masses consisted of multiloculated, mucus-filled, cystic pockets with 2 having partial extension of the ethmoid tumors into the external facial masses. The 2 carcinomas were larger, unilateral, solid facial masses. All tumors caused extensive destruction of the ethmoid region with the carcinomas being paler, firmer, and more invasive into surrounding areas compared with the plasma cell tumors. Ancillary testing did not reveal an underlying infectious cause, although these reports of multiple WTD across a localized region suggest a possible infectious, environmental, or other shared stimulus.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251361137"},"PeriodicalIF":1.7,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144790158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alea Agrawal, Wilson Garuba, Natalie Dunn, Daniel R Rissi, Sarah Morar Schneider, Bhavya Sharma, Denae LoBato
{"title":"Cutaneous silica-associated (cat litter) granulomas in the paws of 13 domestic cats.","authors":"Alea Agrawal, Wilson Garuba, Natalie Dunn, Daniel R Rissi, Sarah Morar Schneider, Bhavya Sharma, Denae LoBato","doi":"10.1177/03009858251352588","DOIUrl":"https://doi.org/10.1177/03009858251352588","url":null,"abstract":"<p><p>Silica is a well-known stimulus of granulomatous inflammation in the lungs of humans and other animals. However, it has been poorly studied as a cause of cutaneous inflammation in domestic animals, despite the predominance of silica in traditional (clay-based) cat litter substrates. Here we characterize the clinical and pathologic findings of 13 surgical biopsies from the paws or paw pads of domestic cats submitted to 2 veterinary institutions between 2005 and 2023. Gross lesions often included chronic or intermittent paw pad swelling, ulceration and bleeding, or draining tracts, particularly in the front paws. All biopsies consisted of granulomatous to pyogranulomatous inflammation with birefringent, amorphous to granular, blue-gray, intrahistiocytic material consistent with silica. Raman spectra were collected from 3 biopsy samples at 45 different locations. Using multivariate analysis, the foreign material in the biopsies had similar Raman spectra to multiple brands of silica-based cat litter. Ten of 13 biopsies also contained evidence of plasma cell pododermatitis, suggesting that underlying paw pad disease may predispose some cats to cutaneous cat litter implantation. In these cats, subsequent granulomatous inflammation may obscure the underlying condition and exacerbate clinical disease. Routine polarization of feline paw or paw pad biopsies is recommended to aid in recognition of cat litter granulomas. Careful examination for a predisposing condition is also warranted when cat litter granulomas are identified. Recurrence is common following surgery; affected cats, and predisposed cats with paw pad disease, may benefit from the use of alternate litter substrates to prevent this lesion or its recurrence.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251352588"},"PeriodicalIF":2.3,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144620748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Luca Bertola, Andrea G Valenti, Andrea Cappelleri, Simone Canesi, Eugenio Scanziani, Camilla Recordati, Lucia Minoli
{"title":"Immunohistochemical characterization of cells of the mononuclear phagocyte system in the mouse.","authors":"Luca Bertola, Andrea G Valenti, Andrea Cappelleri, Simone Canesi, Eugenio Scanziani, Camilla Recordati, Lucia Minoli","doi":"10.1177/03009858251352581","DOIUrl":"https://doi.org/10.1177/03009858251352581","url":null,"abstract":"<p><p>The mononuclear phagocyte system (MPS) is an ensemble of heterogeneous cells comprising circulating monocytes, macrophages, and dendritic cells. Immunohistochemistry is a valuable technique to detect, quantify, and localize MPS cells in tissues, but a comprehensive characterization of MPS cells in normal tissues of mice is lacking to date. The aim of this study was to immunohistochemically characterize MPS cells in a set of murine healthy tissues and in a subset of representative disease states. Sections of healthy tissues obtained from 21 C57BL/6J and C57BL/6N mice and sections of inflammatory (necrosuppurative hepatitis and <i>Pneumocystis murina</i>-associated pneumonia) and experimentally induced neoplastic conditions (human fibrosarcoma xenograft and mammary carcinoma syngraft) were immunolabeled with a panel of MPS markers, including IBA1, F4/80, macrophage receptor with collagenous structure (MARCO), CD206, arginase 1, Ym1, induced nitric oxide synthase, heme-oxygenase 1 (HO-1), and class II major histocompatibility complex (MHC-II). For each tissue, the amount, morphology, location, and immunolabeling intensity of positive cells were evaluated using semi-quantitative scores. Results highlighted the morphological and immunophenotypic heterogeneity of murine MPS cells. The panel of antibodies used allowed for discrimination of different cell populations across the examined tissues based on immunophenotype, microanatomical location, and morphology, providing useful morphological and functional clues on MPS cells in both physiological and diseased conditions. The results of this study provide a valuable reference regarding the amount, morphology, microanatomical location, and immunophenotype of MPS subsets in healthy murine tissues. In addition, it highlights the plasticity of these cells in inflammatory and neoplastic settings, underscoring the importance of a comprehensive characterization of MPS cells in physiological and disease states.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251352581"},"PeriodicalIF":2.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144620749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mirjam Hildebrand, Laura Schäfer, Isabelle Kübler, Manfred Henrich, Monika Welle, Keith E Linder, Peter L Venjakob
{"title":"Diagnostic challenge in veterinary pathology: Generalized alopecia in a Holstein dairy cow.","authors":"Mirjam Hildebrand, Laura Schäfer, Isabelle Kübler, Manfred Henrich, Monika Welle, Keith E Linder, Peter L Venjakob","doi":"10.1177/03009858251347531","DOIUrl":"https://doi.org/10.1177/03009858251347531","url":null,"abstract":"","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251347531"},"PeriodicalIF":2.3,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144585000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Feline oral in situ carcinoma associated with papillomavirus infection: A case series of 7 cats.","authors":"John S Munday, Cynthia M Bell, Emma L Gulliver","doi":"10.1177/03009858251352594","DOIUrl":"https://doi.org/10.1177/03009858251352594","url":null,"abstract":"<p><p>Cutaneous lesions due to papillomavirus (PV) infection are well described in cats. However, there are few reports of similar lesions in the oral cavity. In this case series, 7 cats with in situ carcinomas of the oral mucosa are reported. Lesions appeared histologically like cutaneous Bowenoid in situ carcinomas, and PV-induced cell changes were visible within lesions from 6 cats. A PV etiology was further supported by intense p16<sup>CDKN2A</sup> protein immunolabeling within all lesions. Five lesions contained Felis catus papillomavirus (FcaPV) type 3 DNA, while 2 contained FcaPV1 DNA. Cats had clinical signs of drooling and oral pain for over 6 months prior to diagnosis, and the dorsal surface of the tongue was most often affected. Four cats had multiple oral lesions, and 2 cats had oral and skin lesions. Of the 6 cats for which clinical outcome was known, 3 are still alive at least 6 months after diagnosis, 2 died of unrelated causes 7 and 14 months after diagnosis, and 1 cat was euthanatized due to oral pain 18 months after diagnosis. Results suggest PV-associated oral in situ carcinoma is a specific disease entity of cats. Lesions are slowly progressive with pain management allowing long survival times. No cases were known to progress to invasive squamous cell carcinoma, and feline oral squamous cell carcinomas appear to infrequently develop as a progression from these lesions. Due to the marked difference in biological behavior, diagnosticians should differentiate PV-associated oral in situ carcinomas and oral squamous cell carcinomas in cats.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251352594"},"PeriodicalIF":2.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Veterinary PathologyPub Date : 2025-07-01Epub Date: 2025-07-04DOI: 10.1177/03009858251344319
Andrew D Miller, Jey W Koehler, Anna Oevermann, Daniel R Rissi
{"title":"Special focus on veterinary neuropathology.","authors":"Andrew D Miller, Jey W Koehler, Anna Oevermann, Daniel R Rissi","doi":"10.1177/03009858251344319","DOIUrl":"https://doi.org/10.1177/03009858251344319","url":null,"abstract":"","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":"62 4","pages":"421-423"},"PeriodicalIF":2.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jessica A Elbert, Brittany McHale, Nicole L Gottdenker, Caitlin E Burrell, Rita McManamon, Shannon G M Kirejczyk, Brian R Amman, Tara K Sealy, Patrick Atimnedi, Jonathan S Towner, Elizabeth W Howerth
{"title":"Histologic comparison of hepatic iron overload in managed care and free-ranging Egyptian rousette bats (<i>Rousettus aegyptiacus</i>).","authors":"Jessica A Elbert, Brittany McHale, Nicole L Gottdenker, Caitlin E Burrell, Rita McManamon, Shannon G M Kirejczyk, Brian R Amman, Tara K Sealy, Patrick Atimnedi, Jonathan S Towner, Elizabeth W Howerth","doi":"10.1177/03009858251352580","DOIUrl":"https://doi.org/10.1177/03009858251352580","url":null,"abstract":"<p><p>Iron overload is a leading cause of morbidity and mortality in Egyptian rousette bats (ERBs; <i>Rousettus aegyptiacus</i>) within managed care settings. We compared hepatic iron accumulation and tissue damage in samples collected from managed care bats in a zoo setting, a research colony, and a free-ranging population with the goal of determining if iron overload was a potential cause of morbidity for free-ranging ERBs. Livers from 20 zoo bats, 8 research colony bats, and 69 free-ranging bats were histologically evaluated for fibrosis, necrosis, and iron accumulation in hepatocytes and Kupffer cells. Hemochromatosis was identified only in the zoo population, with hemosiderosis identified in all research colony bats and many free-ranging bats. There were statistically significant associations between age classification, population, and diagnosis and between Marburg virus infection status and histologic liver iron scores. In addition, there were positive associations with statistical significance between age class (juvenile, adult) and histologic iron scores and between population type (zoo bats > research colony bats > free-ranging bats) and histologic iron scores. Excessive hepatic iron storage does not appear to be a source of morbidity within free-ranging ERB populations.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251352580"},"PeriodicalIF":2.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144545049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lev Stimmer, Raoul V Kuiper, Laura Polledo, Lorenzo Ressel, Josep M Monné Rodriguez, Inês B Veiga, Jonathan Williams, Vanessa Herder
{"title":"Natural language processing in veterinary pathology: A review.","authors":"Lev Stimmer, Raoul V Kuiper, Laura Polledo, Lorenzo Ressel, Josep M Monné Rodriguez, Inês B Veiga, Jonathan Williams, Vanessa Herder","doi":"10.1177/03009858251347529","DOIUrl":"https://doi.org/10.1177/03009858251347529","url":null,"abstract":"<p><p>Natural language processing (NLP), a branch of artificial intelligence that focuses on the interaction between computers and human language, has potential in advancing veterinary pathology through its ability to source knowledge efficiently from vast data sets, generate high-quality text rapidly, and enhance data searchability. This review explores the applications of NLP in veterinary pathology, emphasizing its potential role in diagnostics, training pathologists, and research. NLP might offer many advantages, such as accuracy, speed, and cost reduction, especially for routine tasks including text summarization and report generation. These benefits make NLP a promising technology for achieving precision, adding value, and driving innovation in health care. However, caution is warranted, as NLP models may introduce biases and errors due to the quality of the data they are trained on, have limitations in interpreting nuanced or context-specific information, and lead to private data leakage. Furthermore, the multifaceted nature of veterinary pathology data may require specifically trained and expert-validated algorithms for accurate interpretation. To ensure the credibility and validity of research findings, pathologists must critically evaluate and complement obtained outputs with human expertise and judgment. This article highlights the transformative potential of NLP in veterinary pathology, underscores the importance of integrating this technology into the field for enhanced diagnostic accuracy and research advancements, and gives real-life examples from pathologists for pathologists, which illustrate how NLP can be applied in veterinary pathology.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251347529"},"PeriodicalIF":2.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144529759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}