Veterinary Pathology最新文献

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Modifying phrases in veterinary pathology diagnostic reports: The veterinary professionals' perception on the diagnostic confidence. 兽医病理诊断报告用语修改:兽医专业人员对诊断信心的认知。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-04-21 DOI: 10.1177/03009858251334346
Giuseppe Giglia, Ilaria Porcellato, Adriana Lo Giudice, Chiara Brachelente, Elvio Lepri, Leonardo Leonardi, Luca Mechelli, Monica Sforna, Donald Meuten, Maria Teresa Mandara
{"title":"Modifying phrases in veterinary pathology diagnostic reports: The veterinary professionals' perception on the diagnostic confidence.","authors":"Giuseppe Giglia, Ilaria Porcellato, Adriana Lo Giudice, Chiara Brachelente, Elvio Lepri, Leonardo Leonardi, Luca Mechelli, Monica Sforna, Donald Meuten, Maria Teresa Mandara","doi":"10.1177/03009858251334346","DOIUrl":"https://doi.org/10.1177/03009858251334346","url":null,"abstract":"<p><p>Pathologists use modifying phrases (MPs) to express diagnostic confidence (DC) in the diagnosis when essential features of a lesion are lacking. Although commonly used, a standardized application and shared definitions of MPs are not recognized, resulting in a discretional use in veterinary pathology reports. Through an anonymous online survey, this study explored how different groups (veterinary pathologists, general practitioners, specialists of other specialties, residents, and students) perceive selected MPs used in veterinary pathology reports, evaluated their impact on the clinical decision, and provided a possible indication on their use. Participants (<i>n</i> = 753) responded from various continents. The highest DC was generally perceived for the term \"diagnostic of,\" in all groups. \"Compatible with,\" \"indicative of,\" and \"consistent with\" were also generally perceived with high DC. The DC was lower for the other MPs (\"suggestive of,\" \"suspicious for,\" and \"cannot rule out\"). MPs perceived as having the highest DC were more often interpreted as definitive diagnoses, while those with lower DC were more likely perceived as suggestions to perform additional diagnostic tests. Pathology reports may benefit from using the comment section to further clarify the level of certainty of the diagnosis. Limitations in the data's representativeness arise from the non-probabilistic sampling and a predominance of a single nation's participants. Despite this, our study provides valuable insights into the perception and clinical impact of MPs, providing a foundation for discussions aimed in standardizing their use in veterinary pathology reports. Adopting consistent and uniform MPs could improve communication between pathologists and clinicians and patient care.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251334346"},"PeriodicalIF":2.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144020847","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}
引用次数: 0
Digital quantification of porcine circovirus 2 (PCV-2)-infected cells in lymph nodes of pigs with natural PCV-2 systemic disease shows strong association with manual scoring and quantitative PCR. 猪圆环病毒2 (PCV-2)感染的淋巴细胞与人工评分和定量PCR有很强的相关性。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-04-21 DOI: 10.1177/03009858251331121
Dávid G Horváth, Lilla Dénes, Barbara Igriczi, Márton Papp, Víctor Hidalgo-Martínez, Joaquim Segalés, Gyula Balka
{"title":"Digital quantification of porcine circovirus 2 (PCV-2)-infected cells in lymph nodes of pigs with natural PCV-2 systemic disease shows strong association with manual scoring and quantitative PCR.","authors":"Dávid G Horváth, Lilla Dénes, Barbara Igriczi, Márton Papp, Víctor Hidalgo-Martínez, Joaquim Segalés, Gyula Balka","doi":"10.1177/03009858251331121","DOIUrl":"https://doi.org/10.1177/03009858251331121","url":null,"abstract":"<p><p>The diagnosis of porcine circovirus 2 (PCV-2) systemic disease is based on clinical signs, microscopic lesions, and semiquantitative PCV-2 assessment by in situ visualization of immunohistochemistry (IHC) or in situ hybridization labeling within lymphoid tissue lesions. We aimed to digitally quantify IHC-labeled PCV-2-infected cells in porcine lymph nodes with natural PCV-2 systemic disease (<i>n</i> = 53) and to compare these quantitative results with the subjective manual method, and also with the viral DNA copy numbers of the corresponding formalin-fixed, paraffin-embedded tissue blocks. In total, 47 of 54 (87%) cases had the same manual score by 2 independent observers. Infected cell counts increased with manual score severity, and their count could be matched to the manual method. Infected cell odds showed a significant strong positive correlation with the viral copy numbers (ρ = 0.8461, <i>P</i> < .001). Digital image analysis is efficient for PCV-2 IHC signal quantification and can make case assessment more objective and reproducible.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251331121"},"PeriodicalIF":2.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025713","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}
引用次数: 0
Incidence, gross features, and histologic characterization of feline fibrocystic hepatobiliary lesions and extrahepatic biliary malformations. 猫纤维囊性肝胆病变和肝外胆道畸形的发生率、大体特征和组织学特征。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-04-18 DOI: 10.1177/03009858251322737
Megan E Schreeg, John M Cullen
{"title":"Incidence, gross features, and histologic characterization of feline fibrocystic hepatobiliary lesions and extrahepatic biliary malformations.","authors":"Megan E Schreeg, John M Cullen","doi":"10.1177/03009858251322737","DOIUrl":"https://doi.org/10.1177/03009858251322737","url":null,"abstract":"<p><p>Feline fibrocystic hepatobiliary lesions (FHLs) and extrahepatic biliary malformations (EBMs) are supposedly common, but prevalence studies and detailed gross and histologic descriptions within a large cohort are lacking. Our aims were to identify the prevalence of FHLs and EBMs within a large feline population, characterize gross and histologic features, and report comorbidities. Of 140 cats, 20 (14.3%) had either FHLs and/or EBMs. FHLs were most common (15/20, 75%) and included cystic biliary lesions (CBLs, 14/20, 70%) and congenital hepatic fibrosis (CHF, 1/20, 5%). CBLs had gross variability but histologically comprised multiloculated cysts lined by biliary epithelium overlying variably hyalinized collagenous trabeculae. Gross features of CHF included severe hepatic fibrosis with embedded biliary cysts, parenchymal collapse, and nodular regeneration. Histologically, there was loss of lobular architecture, proliferation of small irregular to cystic bile ducts, bridging fibrosis, inapparent portal veins, and scattered hepatocellular necrosis. Gallbladder malformations were present in 5/20 cats (25%) and were classified as duplex (2/5) or bilobed (3/5). Two of 20 cats (10%) had anomalous, blind-ended, extrahepatic bile ducts extending from the gallbladder into the pancreas/peripancreatic mesentery. FHLs and EBMs were rarely concurrent (1/20 cats, 5%). CHF contributed to significant morbidity, but other FHLs/EBMs were incidental. Concurrent pancreatic/renal cysts were uncommon (2/20, 10%) and were seen in association with a CBL and CHF. Common comorbidities included cardiovascular and/or renal disease and neoplasia. We provide evidence that the majority of feline FHLs represent ductal plate malformations, with CBLs having morphologic features compatible with von Meyenburg complexes (VMCs)/biliary hamartomas.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251322737"},"PeriodicalIF":2.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016833","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}
引用次数: 0
Clinicopathological progression and molecular characterization of intestinal dilatation syndrome in commercial brown layers. 商品褐蛋鸡肠扩张综合征的临床病理进展及分子特征。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-04-11 DOI: 10.1177/03009858251331106
Álex Gómez, Ana Rodríguez-Largo, Estela Pérez, Serafín García Freire, Christiane Hundehege, Eva Berberich, Lluís Luján, Diego Cortés
{"title":"Clinicopathological progression and molecular characterization of intestinal dilatation syndrome in commercial brown layers.","authors":"Álex Gómez, Ana Rodríguez-Largo, Estela Pérez, Serafín García Freire, Christiane Hundehege, Eva Berberich, Lluís Luján, Diego Cortés","doi":"10.1177/03009858251331106","DOIUrl":"https://doi.org/10.1177/03009858251331106","url":null,"abstract":"<p><p>Intestinal dilatation syndrome (IDS) is a poorly described condition affecting layers and breeder hens globally. Its prevalence is increasing, particularly in free-range systems, but the cause remains unknown. This retrospective study examined 35 hens from 3 flocks: free-range flock A (n = 20) and enriched-caged flock B (n = 5), both affected by IDS, and enriched-caged flock C (n = 10), with no history of IDS. Clinicopathological studies were performed on these hens, and metagenomic analysis was conducted on the proventriculus and jejunum of hens from flock A (n = 2) and flock C (n = 2). Based on clinical signs and lesions, 3 progressive stages of IDS were identified. In the first stage, although hens were without clinical signs, proventricular dilatation and lymphoplasmacytic and heterophilic jejunitis and duodenitis were observed. The second stage was marked by cachexia, pale and small combs and wattles, and severe egg production drop. Jejunal dilatation was observed, with microscopic evidence of necrotic, lymphoplasmacytic and heterophilic jejunitis; ganglioneuritis; and mineralization of the jejunal nervous plexuses and subserosal ganglia. In the third stage, spontaneous death occurred due to jejunal volvulus and vascular involvement. Affected hens (stage 2) also exhibited elevated cloacal temperatures (>0.9°C) and marked heterophilia. Metagenomic analysis identified sequences consistent with <i>Megrivirus C</i> in IDS-affected hens and a disruption of the gut microbiota, with increased abundance of <i>Fusobacterium mortiferum</i> and <i>Megamonas funiformis</i>. In conclusion, this study describes in detail the clinicopathological progression of the IDS and suggests that <i>Megrivirus C</i>, in combination with opportunistic intestinal bacteria, could play a role in the pathogenesis of this disease.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251331106"},"PeriodicalIF":2.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144050529","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}
引用次数: 0
Canine laryngotracheal plasma cell tumors: Ten cases and literature review. 犬喉气管浆细胞瘤10例并文献复习。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-04-11 DOI: 10.1177/03009858251331115
Kathleen R Mulka, Deborah Gillette, Amy C Durham, Elizabeth A Mauldin
{"title":"Canine laryngotracheal plasma cell tumors: Ten cases and literature review.","authors":"Kathleen R Mulka, Deborah Gillette, Amy C Durham, Elizabeth A Mauldin","doi":"10.1177/03009858251331115","DOIUrl":"https://doi.org/10.1177/03009858251331115","url":null,"abstract":"<p><p>Canine extramedullary plasma cell tumors (EMPs) most commonly arise in the skin, oral cavity, rectum, and colon. This retrospective study describes the histopathological and immunohistochemical characteristics and associated clinical signs and outcomes of laryngeal and tracheal EMPs in dogs. Five tracheal and 5 laryngeal EMPs were diagnosed at the Penn Vet Diagnostic Laboratory. Clinical information was obtained via submission forms and follow-up questionnaires. All dogs were male (9 castrated), 7 to 15 years old, and of different breeds. Neoplasms were composed of well-differentiated (n = 6) or moderately differentiated (n = 4) neoplastic plasma cells arranged in sheets, cords, and packets. All neoplasms labeled positively for MUM-1, negatively for PAX5, and were variably CD20- and CD79b-positive. There was no recurrence or disease progression 2 months to 7 years post biopsy in 6/9 cases. Results suggest that surgical resection can result in positive outcomes. Further studies are needed to identify factors leading to progression of this disease.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251331115"},"PeriodicalIF":2.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019764","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}
引用次数: 0
Bridging the gap between histopathology and genomics: Spotlighting spatial omics. 弥合组织病理学和基因组学之间的差距:聚焦空间组学。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-03-26 DOI: 10.1177/03009858251322729
Sujata Jana, Raisa A Glabman, Amanda L Koehne
{"title":"Bridging the gap between histopathology and genomics: Spotlighting spatial omics.","authors":"Sujata Jana, Raisa A Glabman, Amanda L Koehne","doi":"10.1177/03009858251322729","DOIUrl":"https://doi.org/10.1177/03009858251322729","url":null,"abstract":"<p><p>Spatial biology has emerged as a transformative field, offering insights into cellular interactions and organization within tissues. The field has evolved rapidly since the coining of the term \"spatial omics.\" Now, the ability to spatially resolve proteins, RNA, chromatin, and lipids is becoming widespread, and the technologies are continually refined. Reagents to support the analysis of veterinary species are available and more are emerging. These new tools will allow pathologists and scientists to unravel the intricate interplay between tissue architecture and diverse cellular phenotypes. By integrating histological observations with spatially resolved genomic data, spatial biology holds immense potential for advancing diagnostic and therapeutic strategies in veterinary medicine. These tools will undoubtedly equip veterinary pathologists to better decipher complex disease processes and identify novel therapeutic targets.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251322729"},"PeriodicalIF":2.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143731702","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}
引用次数: 0
Immunohistochemical and histomorphologic characterization of canine neoplasms of the disseminated neuroendocrine system. 犬弥散性神经内分泌系统肿瘤的免疫组织化学和组织形态学特征。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-03-21 DOI: 10.1177/03009858251324652
Christopher P Champion, Andrew D Miller, Stephen Parry, Elena Alina Demeter
{"title":"Immunohistochemical and histomorphologic characterization of canine neoplasms of the disseminated neuroendocrine system.","authors":"Christopher P Champion, Andrew D Miller, Stephen Parry, Elena Alina Demeter","doi":"10.1177/03009858251324652","DOIUrl":"https://doi.org/10.1177/03009858251324652","url":null,"abstract":"<p><p>Canine neoplasms of the diffuse neuroendocrine system are an enigmatic and heterogeneous group of neoplasms with a wide spectrum of immunohistochemical properties and morphologic features. Through the utilization of tissue microarrays, 82 canine neoplasms of the disseminated neuroendocrine system from 16 different anatomic locations were evaluated. The prototypical canine neoplasm of the disseminated neuroendocrine system was composed of rounded polygonal neoplastic cells arranged in packets supported by delicate fibrovascular stroma. Neoplastic cells typically had moderate quantities of pale eosinophilic cytoplasm stippled by numerous fine argyrophilic granules, round nuclei with finely stippled chromatin, and inconspicuous nucleoli. Immunohistochemical assays utilized in this study included chromogranin A, neuron-specific enolase (NSE), microtubule-associated protein 2 (MAP2), pan-cytokeratin, oligodendrocyte transcription factor 2 (OLIG2), protein gene product 9.5 (PGP9.5), vimentin, synaptophysin, neuronal nuclei (NeuN), S100, SRY-related HMG-box 10 (SOX10), glial fibrillary acidic protein (GFAP), insulinoma-associated protein 1 (INSM1), CD56, and antigen Kiel 67 (Ki67). The 4 immunohistochemical assays that were positive in over 50% of cases included PGP9.5 (77/82, 94%), NSE (68/82, 83%), synaptophysin (59/82, 72%), and chromogranin A (56/82, 69%). In 81/82 (99%) cases, neoplastic cells immunolabeled with at least 1 of these 4 assays, and thus, these 4 immunohistochemical assays are deemed most useful when attempting to substantiate that a neoplasm is of neuroendocrine origin.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251324652"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671025","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}
引用次数: 0
Ocular and periocular Usutu virus-associated lesions in naturally infected Eurasian blackbirds (Turdus merula). 自然感染的欧亚黑鹂眼部和眼周Usutu病毒相关病变
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-03-21 DOI: 10.1177/03009858251324640
Giuseppe Giglia, Gianfilippo Agliani, Nadiah M H A van Eijk, Erwin de Bruin, Christine Fast, Reina S Sikkema, Bas B Oude Munnink, Maria Teresa Mandara, Andrea Gröne, Judith M A van den Brand
{"title":"Ocular and periocular Usutu virus-associated lesions in naturally infected Eurasian blackbirds (<i>Turdus merula</i>).","authors":"Giuseppe Giglia, Gianfilippo Agliani, Nadiah M H A van Eijk, Erwin de Bruin, Christine Fast, Reina S Sikkema, Bas B Oude Munnink, Maria Teresa Mandara, Andrea Gröne, Judith M A van den Brand","doi":"10.1177/03009858251324640","DOIUrl":"10.1177/03009858251324640","url":null,"abstract":"<p><p>Usutu virus (USUV) is a zoonotic neurotropic arbovirus related to the West Nile virus that causes mortality in birds and sporadic neurologic human disease. Current research on natural USUV-associated disease lacks data on ocular involvement. This study investigated ocular and periocular tissue involvement in natural USUV infections and associated disease in Eurasian blackbirds (<i>Turdus merula</i>). Twenty-two found-dead Eurasian blackbirds were examined. USUV reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) detected 12/22 infected blackbirds. Histology and immunohistochemistry for virus antigen, inflammation (anti-CD3 for T-lymphocytes), and apoptosis (anti-cleaved caspase-3 (CC3)) assessed the virus tropism and associated damage. In the eye of USUV-infected blackbirds, choroiditis was the main finding (9/12), while the pecten oculi (4/12) and optic nerves (4/12) were occasionally affected. Virus antigen was detected in the lesions. The cornea and retina lacked virus antigens and lesions. Periocular soft tissues (12/12) and eyelids (9/12) were also affected. Lesions in the choroid (<i>P</i> < .001), ciliary bodies (<i>P</i> < .01), and sclera (<i>P</i> < .05) were significantly associated with USUV infection. In the choroid, CD3 and CC3 strongly correlated with the virus antigen scores (<i>P</i> < .0001), suggesting a T-cell response and apoptosis involvement in the ocular damage. A negative correlation was identified for the virus antigen score in choroid and eyelids with USUV RT-qPCR Ct values (<i>P</i> < .05). This study reports for USUV features consistent with ocular and periocular tropism and disease with a major involvement of the choroid, suggesting a primary ocular vascular spread.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251324640"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671026","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}
引用次数: 0
Pathology of Clostridium colinum infection in quail. 鹌鹑柱状梭菌感染的病理研究。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-03-19 DOI: 10.1177/03009858251324641
Agustín Rebollada-Merino, Jey W Koehler, Martí Pumarola, Juliann Beingesser, Jessica González, Mauricio A Navarro, Francisco A Uzal
{"title":"Pathology of <i>Clostridium colinum</i> infection in quail.","authors":"Agustín Rebollada-Merino, Jey W Koehler, Martí Pumarola, Juliann Beingesser, Jessica González, Mauricio A Navarro, Francisco A Uzal","doi":"10.1177/03009858251324641","DOIUrl":"https://doi.org/10.1177/03009858251324641","url":null,"abstract":"<p><p><i>Clostridium colinum</i> causes ulcerative enteritis in several avian species. The disease is particularly prevalent in quail, and it is therefore colloquially known as quail disease. The pathogenesis of the infection is poorly understood. A retrospective study of <i>C. colinum</i> infection in quail submitted for necropsy and diagnostic work up to the California Animal Health and Food Safety Laboratory System between 1992 and 2022 was performed. The necropsy reports were reviewed, and polymerase chain reaction (PCR) for <i>C. colinum</i> (<i>16S rRNA</i>) was performed on formalin-fixed, paraffin-embedded tissues. <i>C. colinum</i> was isolated in 17% (4/24) and detected by PCR in 96% (23/24) of cases. Bobwhite quail (<i>Colinus virginianus</i>) were overrepresented, and the most affected quail were juveniles. Clinical history and signs were increased mortality (92%), lethargy (29%), depression (25%), diarrhea (21%), loss of nutritional condition (8%), and seizures (8%). Grossly, intestinal ulceration (100%) affecting the duodenum (79%), jejunum (100%), ileum (29%), and/or ceca (21%). Fibrinous celomitis (13%), hepatic necrosis (46%), and pectoral muscle atrophy (92%) were observed. Histologically, all quail showed multifocal ulcerative jejunitis, duodenitis, ileitis, and/or typhlitis with intralesional bacilli. Ulcerative enteritis was transmural in 92% of cases, associated with intestinal perforation in 38%, and causing celomitis in 50% of cases. Hepatic necrosis was confirmed in 63% of cases, and neuronal changes suggesting a combination of hypoxia-ischemia and hypoglycemia were found in 63% of cases. These results suggest that a diagnosis of <i>C. colinum</i> infection should be made based on gross and microscopic lesions, coupled with PCR.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251324641"},"PeriodicalIF":2.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143658869","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}
引用次数: 0
Diagnostic dilemma: Papillary third ventricular neoplasm with concurrent choroid plexus and ependymal features in a cat. 诊断难题:一只猫的第三脑室乳头状肿瘤同时伴有脉络丛和上皮细胞特征。
IF 2.3 2区 农林科学
Veterinary Pathology Pub Date : 2025-03-19 DOI: 10.1177/03009858251324636
Taryn A Donovan, Andrew Miller, Anibal G Armien, Brian Alan Summers, Robin Lampron, Chad West, Daniel R Rissi
{"title":"Diagnostic dilemma: Papillary third ventricular neoplasm with concurrent choroid plexus and ependymal features in a cat.","authors":"Taryn A Donovan, Andrew Miller, Anibal G Armien, Brian Alan Summers, Robin Lampron, Chad West, Daniel R Rissi","doi":"10.1177/03009858251324636","DOIUrl":"https://doi.org/10.1177/03009858251324636","url":null,"abstract":"<p><p>A 6-year-old, castrated male, domestic shorthair cat with progressive neurologic signs underwent magnetic resonance imaging, revealing a suprasellar mass, which resulted in euthanasia. Grossly, a tan-red tumor expanded the ventral third ventricle, compressed adjacent brain structures, and emerged ventrally at the midline. Histologically, numerous arborizing papillary formations protruded into a network of anastomosing luminal canals. Neoplastic cells immunolabeled for pan-cytokeratin, vimentin, and E-cadherin, and lacked immunolabeling for oligodendrocyte transcription factor 2 (OLIG2), glial fibrillary acidic protein (GFAP), and adrenocorticotropic hormone (ACTH). Transmission electron microscopy revealed apical microvilli, apical and lateral tight junctions, and a basal membrane. In this cat, the neuroanatomic location with ventral brain invasion was more suggestive of ependymal origin; however, there were overlapping histologic and immunohistochemical features, and ultrastructural features were more consistent with choroid plexus epithelium. Dual ependymal and choroid plexus differentiation could not be excluded. This case highlights species differences in both the occurrence and neurolocalization of intraventricular tumors in domestic animals and comparable features between papillary ependymoma and choroid plexus papilloma.</p>","PeriodicalId":23513,"journal":{"name":"Veterinary Pathology","volume":" ","pages":"3009858251324636"},"PeriodicalIF":2.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143658866","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}
引用次数: 0
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