Veterinary Radiology & Ultrasound最新文献_第2页

Differential Diagnosis Using MRI of Canine Intestinal Neoplasms, Including Lymphoma, Adenocarcinoma, and Inflammatory Polyp: Case Series. 犬肠道肿瘤的MRI鉴别诊断，包括淋巴瘤、腺癌和炎性息肉：病例系列。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70257

Toshiyuki Tanaka, Yusuke Wada, Mizuki Tomihari, Takashi Hasegawa

{"title":"Differential Diagnosis Using MRI of Canine Intestinal Neoplasms, Including Lymphoma, Adenocarcinoma, and Inflammatory Polyp: Case Series.","authors":"Toshiyuki Tanaka, Yusuke Wada, Mizuki Tomihari, Takashi Hasegawa","doi":"10.1111/vru.70257","DOIUrl":"10.1111/vru.70257","url":null,"abstract":"No studies have evaluated magnetic resonance imaging (MRI) findings of intestinal neoplasms in veterinary medicine. We hypothesized that MRI findings would differ among intestinal neoplasms in veterinary medicine. This study retrospectively assessed the MRI findings of intestinal neoplasms, including lymphomas (n = 6), adenocarcinomas (n = 2), and inflammatory polyps (n = 4) in dogs. The following MRI parameters were recorded: neoplasm signal intensity (SI) on T1-weighted images (T1WI), T2-weighted images (T2WI), contrast-enhanced T1WI (C-T1WI), and diffusion-weighted images (DWI); contrast enhancement pattern on C-T1WI; the presence of intestinal obstruction; and apparent diffusion coefficient (ADC) values. All lymphomas (6 of 6) showed hypointense SI on C-T1WI, whereas adenocarcinomas (0 of 2) and inflammatory polyps (0 of 4) did not (p = 0.002). Lymphomas (5 of 6) showed homogeneous enhancement significantly more frequently than adenocarcinoma (0 of 2) and inflammatory polyps (0 of 4) (p = 0.02). Regarding SI of T1WI, T2WI, and qualitative DWI, and the presence of intestinal obstruction, no significant differences were observed among intestinal neoplasms. The ADC values of lymphomas (0.58 ± 0.18 × 10-3 mm2/s) were significantly lower than adenocarcinomas (1.27 ± 0.007 × 10-3 mm2/s, p = 0.01) and inflammatory polyps (1.56 ± 0.3 × 10-3 mm2/s, p = 0.0002). Lymphomas showed homogeneous low enhancement and significantly lower ADC values compared with adenocarcinomas and inflammatory polyps by MRI. These MRI findings may help differentiate intestinal lymphoma from other intestinal neoplasms.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70257"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13584231/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148991317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imaging Characteristics of Pylorogastric, Duodenogastric, and True-Gastrogastric Intussusception in 25 Dogs and One Cat. 25只狗和1只猫幽门胃、十二指肠胃和真胃肠套叠的影像学特征。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70213

Dylan Burton, Linda Dillenbeck, Megan Stadler, Wilfried Mai, Anthony Fischetti, Christine Gremillion, Pablo Espinosa-Mur, Jaime Rechy, Alexandra Gibalski, Kelsey Cline

{"title":"Imaging Characteristics of Pylorogastric, Duodenogastric, and True-Gastrogastric Intussusception in 25 Dogs and One Cat.","authors":"Dylan Burton, Linda Dillenbeck, Megan Stadler, Wilfried Mai, Anthony Fischetti, Christine Gremillion, Pablo Espinosa-Mur, Jaime Rechy, Alexandra Gibalski, Kelsey Cline","doi":"10.1111/vru.70213","DOIUrl":"10.1111/vru.70213","url":null,"abstract":"Gastric intussusception in dogs and cats is uncommon, and there are multiple variations described in the literature. The aim of this study was to describe the imaging characteristics of pylorogastric (PG), duodenogastric (DG), and true-gastrogastric (true-GG) intussusceptions. In this multicenter retrospective study, available medical records and imaging (radiographs, ultrasound [US], and computed tomography [CT]) were evaluated. Group allocation (PG, DG, and true-GG) was based on US/CT findings, or surgical/necropsy findings if only radiographs were available. Available surgical/necropsy follow-up was reported. Twenty-five dogs and one cat (7 weeks-10 years) were included, representing 22 males, four females, and multiple breeds. Twenty-two presented with vomiting. They were diagnosed via US (n = 21), CT (n = 2), or surgery (n = 3). There were 14 PG, 9 true-GG, and 3 DG intussusceptions. A rounded soft tissue opaque mass in the pylorus was present in 8/9 PG and 1/1 DG cases with radiographs. Moderate to marked wall thickening was present in all true-GG and most PG cases on US/CT, predominantly affecting the submucosal layer. Surgical/necropsy follow-up was available in 17 cases diagnosed via imaging and showed spontaneous resolution of five true-GG and one PG intussusception. Two cases classified as PG based on imaging were described as DG at surgery/necropsy. There are some overlapping features of PG and DG intussusceptions on radiographs and US. Moderate to marked submucosal thickening seen with PG and true-GG cases likely represents edema/congestion. Spontaneous resolution of true-GG and PG intussusceptions is possible. US and CT were diagnostic of the type of intussusception in most cases.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70213"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13420225/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148621584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bunny Burrito Restraint for Computed Tomography in Conscious Rabbits: An Effective Alternative. 兔子卷饼约束的计算机断层扫描意识兔子：一个有效的选择。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70230

Hung-Ting Liu, Jonathan Olijnyk, Jessica Ingman, Ellen Sundberg, Laetitia Volait-Rosset, Alexis Gombert

{"title":"Bunny Burrito Restraint for Computed Tomography in Conscious Rabbits: An Effective Alternative.","authors":"Hung-Ting Liu, Jonathan Olijnyk, Jessica Ingman, Ellen Sundberg, Laetitia Volait-Rosset, Alexis Gombert","doi":"10.1111/vru.70230","DOIUrl":"10.1111/vru.70230","url":null,"abstract":"Computed tomography (CT) is a critical diagnostic tool in rabbits. Traditional CT imaging often requires sedation or general anesthesia, posing inherent risks such as mortality and gastrointestinal complications. An effective physical restraint method could enhance patient safety, reduce costs, and improve accessibility to CT imaging. This study evaluates the effectiveness of the well-known bunny burrito restraint technique as an alternative to the plexiglass chamber method for conducting CT examinations in conscious rabbits. A retrospective multicenter observational study was conducted on 93 client-owned rabbits undergoing CT between March 2021 and December 2023. Cases were classified into three restraint groups: bunny burrito (n = 36), plexiglass chamber (n = 47), and sedation (n = 10). CT image quality was assessed on the basis of motion artifacts, positioning, and stability across different acquisitions. Statistical analyses, including logistic regression, were performed to compare the two physical restraint methods. The bunny burrito technique had significantly lower motion artifacts in pre-contrast acquisition (p = 0.02), better positioning in the dental disease subgroup (p = 0.03), and better stability in early post-contrast period (p = 0.04, wide confidence interval) compared to the plexiglass chamber group. Image quality was similar between bunny burrito and sedation in descriptive results. No complications were reported during or after CT examinations. In conclusion, the bunny burrito method is an effective and safe restraint method for CT imaging in conscious rabbits that shows advantages over the plexiglass chamber in specific imaging contexts. It minimizes sedation-related risks with simplified equipment. This method represents a valuable advancement in veterinary diagnostic imaging.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70230"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13510107/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148819621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computed tomographic Characteristics of Presumed Normal Canine Iliosacral Lymph Nodes. 假定正常犬髂骶淋巴结的计算机断层特征。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70259

Mohammad Momin Iqbal, Monique Mayer, Amy Larkin, Sarah Parker, Sally Sukut

{"title":"Computed tomographic Characteristics of Presumed Normal Canine Iliosacral Lymph Nodes.","authors":"Mohammad Momin Iqbal, Monique Mayer, Amy Larkin, Sarah Parker, Sally Sukut","doi":"10.1111/vru.70259","DOIUrl":"10.1111/vru.70259","url":null,"abstract":"Computed tomographic (CT) evaluation of medial iliac (MILN), internal iliac (IILN), and sacral (SLN) lymph nodes (LNs) in dogs provides vital staging information in certain neoplastic conditions. This retrospective study aimed to determine minimum transverse diameter (MinTD) and maximum transverse diameter (MaxTD) values for presumed normal iliosacral LNs and assess their utility in evaluating therapeutic response using response evaluation criteria in solid tumors (RECIST) v1.1. LN margins, number, and pre-contrast attenuation were also analyzed. The CT scans of 71 dogs were reviewed by an ACVR-certified veterinary radiologist. The MILNs were identified in 99% of dogs, predominantly bilaterally. The IILNs and SLNs were identified in 79% and 41% of dogs, respectively, with more variability in bilateral versus unilateral presence. Median values for MinTD/MaxTD were 4.2/7.4 mm for MILNs, 2.5/4.0 mm for IILNs, and 2.9/4.9 mm for SLNs. MinTD was <10 mm in all but one LN; MaxTD exceeded 10 mm in 19% of MILN sites and 1% of IILN sites. These results suggest that MinTD better reflects the RECIST v1.1 definition of non-pathologic LNs (i.e., LNs <10 mm) and is the recommended measurement when evaluating therapeutic response. Transverse diameters, except MILN MaxTD, were larger in intact dogs (p ≤ 0.013), and females had larger SLN MaxTD (p = 0.047). Aortic diameter and body weight were positively correlated (r = 0.7, p < 0.001), and dogs with an aortic diameter >8.6 mm had greater diameters for MILNs and IILNs (p ≤ 0.034). Separate MinTD values for IILNs and SLNs are presented herein, whereas prior studies reported them as a combined group.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70259"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13598736/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149026028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasonography in Canine Carpal Disorders. 犬腕关节疾病的超声检查。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70239

Sven Klußmann, Andrea Meyer-Lindenberg, Andreas Brühschwein

{"title":"Ultrasonography in Canine Carpal Disorders.","authors":"Sven Klußmann, Andrea Meyer-Lindenberg, Andreas Brühschwein","doi":"10.1111/vru.70239","DOIUrl":"10.1111/vru.70239","url":null,"abstract":"Ultrasonographic studies of canine carpal disorders are scarce and typically limited to case reports or evaluations of single structures. This prospective, single-center study characterized ultrasonographic findings in canine carpal disorders confirmed by a composite reference standard and clinical follow-up, and it assessed the diagnostic role of high-frequency musculoskeletal ultrasound in relation to radiography and selectively performed cross-sectional imaging. Forty-eight carpi in 41 dogs were evaluated. This study represents the first ultrasound case series across the spectrum of canine carpal disorders. Musculotendinous disorders were most common (n = 30/48; 63%), followed by inflammatory arthropathy, neoplasia, and bone lesions (each 6/48; 13%). Ultrasound enabled compartmental localization of swelling and structural characterization of soft tissue abnormalities. Swelling distribution correlated with the underlying disorder in 46 of 48 (96%) carpi; subcutaneous thickening (n = 27/48; 56%) was frequent but nonspecific. Stenosing tenosynovitis of the abductor pollicis longus was the most common individual diagnosis (n = 16/48; 33%). Carpal effusion was identified sonographically and associated with dorsal displacement of the antebrachiocarpal fat pad. Ultrasonography did not allow reliable benign-malignant classification of mass lesions; therefore, definitive classification requires tissue sampling. In the subset undergoing cross-sectional imaging, CT or MRI primarily refined lesion extent and osseous detail, particularly in bone lesions including fractures, but did not consistently alter the primary diagnosis established by combined radiography and ultrasonography. A combined radiographic and ultrasonographic approach is supported as a practical first-line imaging strategy for canine carpal disease, with CT or MRI reserved for selected complex, equivocal, or predominantly osseous cases.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70239"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13586417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148991344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnostic Accuracy of Scintigraphy for Detecting Morphological Variation of the Sixth Cervical Vertebral Ventral Lamina in Horses: A Retrospective Study. 闪烁显像检测马第六颈椎腹侧板形态变异的诊断准确性：回顾性研究。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70243

Mahmoud Mageed, Shahlaa Dyab, Maciej Przewoźny

{"title":"Diagnostic Accuracy of Scintigraphy for Detecting Morphological Variation of the Sixth Cervical Vertebral Ventral Lamina in Horses: A Retrospective Study.","authors":"Mahmoud Mageed, Shahlaa Dyab, Maciej Przewoźny","doi":"10.1111/vru.70243","DOIUrl":"10.1111/vru.70243","url":null,"abstract":"Morphological variations or transposition of the ventral lamina of the sixth cervical vertebra (C6) are well documented in horses. Radiography remains the primary modality for identifying these osseous variations, whereas scintigraphy provides a functional assessment of bone activity; however, its diagnostic accuracy for this condition has not been established. This retrospective single-center study evaluated the diagnostic performance of scintigraphy compared with radiography for detecting C6/C7 ventral laminar anomalies and determined an optimal C6:C7 uptake ratio cutoff. Thirty-four horses underwent both radiographic and scintigraphic examination. Radiography served as the reference standard, classifying horses as normal (n = 22) or abnormal (n = 12; unilateral n = 5, bilateral n = 7). Semiquantitative scintigraphic analysis was performed using a C6:C7 uptake ratio derived from background-corrected counts per pixel. The visual scintigraphic assessment demonstrated 75.0% sensitivity (95% CI: 42.8%-94.5%) and 72.7% specificity (95% CI: 50.9%-88.7%). Semiquantitative receiver-operating characteristic (ROC) analysis yielded an optimal C6:C7 ratio cutoff of 0.81 (area under the curve [AUC] = 0.762), providing 66.7% sensitivity and 81.8% specificity. The C6:C7 ratio was significantly higher in abnormal horses compared with normal horses for both the left (0.860 ± 0.149; p = 0.006) and right (0.812 ± 0.148; p = 0.035) sides. No significant differences within-subject side-to-side (left-right) C6:C7 ratio were detected. Scintigraphy demonstrated moderate diagnostic accuracy for detecting C6:C7 ventral laminar anomalies. A C6:C7 ratio threshold of 0.81 may serve as a practical adjunct screening parameter, though validation in larger populations is warranted.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70243"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13579159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to "Pneumonia Detection in Veterinary X-Rays Utilizing PaddleSeg-Based Semantic Segmentation and Mamba-Powered Classification". 更正“利用基于paddleseg的语义分割和曼巴动力分类在兽医x射线中检测肺炎”。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70263

引用次数: 0

Triple-Phase Computed Tomography for Differentiating Canine Cutaneous and Subcutaneous Mast Cell Tumors From Benign Lesions: A Size-Based Evaluation. 鉴别犬皮肤和皮下肥大细胞瘤与良性病变的三期计算机断层扫描：基于大小的评估。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70256

Motomu Morishita, Takuya Kusaka, Mayumi Murata, Toshiyuki Tanaka

{"title":"Triple-Phase Computed Tomography for Differentiating Canine Cutaneous and Subcutaneous Mast Cell Tumors From Benign Lesions: A Size-Based Evaluation.","authors":"Motomu Morishita, Takuya Kusaka, Mayumi Murata, Toshiyuki Tanaka","doi":"10.1111/vru.70256","DOIUrl":"10.1111/vru.70256","url":null,"abstract":"Canine cutaneous and subcutaneous mast cell tumors (MCTs) have highly variable clinical presentation, often mimicking benign lesions. This retrospective case-control study aimed to identify triple-phase computed tomography (CT) features that distinguish MCTs from benign lesions, with an emphasis on tumor size. Twenty-three MCTs (10 large [≥3 cm]; 13 small [<3 cm]) and seven benign lesions were included. Qualitative features and CT attenuation values were compared among three groups by size and type. Large MCTs were primarily characterized by qualitative CT features. Significant differences among the three groups were observed in heterogeneous enhancement patterns, feeding vessels, infiltration, necrosis, and fat stranding. These features were most frequently observed in large MCTs. In contrast, small MCTs lacked these features but showed significantly higher CT attenuation values in the portal venous and equilibrium phases than benign lesions (p = 0.025 and 0.034, respectively). Receiver operating characteristic curve analysis for discriminating small MCTs from benign lesions yielded optimal cutoff values of 68.7 Hounsfield units (HU) for the portal venous phase (area under the curve [AUC] = 0.88; sensitivity, 92%; specificity, 71%) and 74.7 HU for the equilibrium phase (AUC = 0.85; sensitivity, 92%; specificity, 57%). In conclusion, despite the limited sample size, these findings suggest that triple-phase CT has clinical utility for differentiating MCTs from benign lesions. Qualitative patterns are particularly informative for large MCTs, whereas CT attenuation values in the portal venous and equilibrium phases may serve as objective adjunct indicators for identifying small MCTs that lack distinct morphological features.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70256"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13584230/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148991339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scintigraphic Characteristics of the Occipitoatlantoaxial Region in Clinically Sound Horses. 临床健全马枕寰枢椎区的闪烁特征。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-09-01 DOI: 10.1111/vru.70235

Mahmoud Mageed, Magdalena Podsobińska, Maciej Przewoźny

{"title":"Scintigraphic Characteristics of the Occipitoatlantoaxial Region in Clinically Sound Horses.","authors":"Mahmoud Mageed, Magdalena Podsobińska, Maciej Przewoźny","doi":"10.1111/vru.70235","DOIUrl":"10.1111/vru.70235","url":null,"abstract":"The equine occipitoatlantoaxial (OAA) region is biomechanically complex, yet normative scintigraphic reference data for this area are lacking. This retrospective study characterized the physiological radiopharmaceutical uptake pattern in the OAA region of 60 clinically sound horses, assigned equally into four age groups: under 6 years (Group A), 6-10 years (Group B), 11-15 years (Group C), and over 15 years (Group D). A standardized, semiquantitative analysis of lateral bone-phase scintigrams was performed using region of interest (ROI) ratios to determine uptake patterns. A highly consistent pattern was observed across all groups, with the atlantoaxial region (cranial C2) demonstrating the highest uptake, approximately 5.8 times greater (SD 1.93; 95% CI: [5.6-6.6]) than the lowest uptake in the atlanto-occipital region. While age had no significant overall effect on the pattern, Group C (11-15 years) showed slightly higher uptake in the ventral atlas (ROI vC1) and cranial axis (ROI C2) compared to other groups. This study provides the first detailed baseline of normal OAA scintigraphic appearance across a representative age range, establishing essential reference data to improve diagnostic accuracy for cervical pathology in clinical practice.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 5","pages":"e70235"},"PeriodicalIF":1.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13584237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148991332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CT Findings of Feline Nasal Hamartomas Mimicking Malignant Growth. 猫鼻恶性错构瘤的CT表现。

IF 1.2 2区农林科学

Veterinary Radiology & Ultrasound Pub Date : 2026-07-01 DOI: 10.1111/vru.70185

Pamela Di Donato, Barbara Brunetti, Davide De Lorenzi, Angela Vittoria De Magistris, Manuela Baldinetti, Federica Rossi, Barbara Bacci, Elisa Zambon, Swan Specchi

{"title":"CT Findings of Feline Nasal Hamartomas Mimicking Malignant Growth.","authors":"Pamela Di Donato, Barbara Brunetti, Davide De Lorenzi, Angela Vittoria De Magistris, Manuela Baldinetti, Federica Rossi, Barbara Bacci, Elisa Zambon, Swan Specchi","doi":"10.1111/vru.70185","DOIUrl":"10.1111/vru.70185","url":null,"abstract":"Nasal hamartoma (NH) is a rare nonneoplastic excessive growth of native tissue of the nasal cavity. Four histological subtypes are described in cats and dogs: mesenchymal nasal hamartoma (MNH), epithelial hamartoma, mixed tissue (chondro-osseous and respiratory epithelial adenomatoid hamartoma/COREAH), and nasal vascular hamartoma. This descriptive, retrospective study aims to describe the computed tomographic (CT) features of feline NHs. Fourteen cats were included (six MNH, six COREAH, one epithelial, and one vascular). Twelve MNH and COREAH were soft-tissue and mineral-attenuating locally invasive nasal masses with expansile behavior (nine unilateral and three bilateral). The nasal turbinate architecture was replaced by exuberant/disorganized mineral densities arranged in a \"cerebroid pattern\" in all cases. Contrast enhancement was moderate in 75% of cats. Commonly, the mass extended into the rostral nasopharynx, contralateral choana/nasal cavity, and nostrils, more rarely into the orbital cavity and/or facial soft tissue. Focal osteolysis/atrophy of the paranasal bones was common (10/12 cases). The epithelial and vascular hamartomas were soft tissue-attenuating unilateral masses without mineral components. Contrast enhancement was marked in the vascular hamartoma. NHs are relatively rare, tumor-like growths in cats that mainly contain mesenchymal elements. Common CT features include expansile nasal lesions that are locally invasive, characterized by a mineral \"cerebroid pattern.\" Despite the low incidence, it is crucial to be aware of their presence and include them in the differential diagnosis of feline nasal masses.","PeriodicalId":23581,"journal":{"name":"Veterinary Radiology & Ultrasound","volume":"67 4","pages":"e70185"},"PeriodicalIF":1.2,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13354879/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148424611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0