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Thomsen BJ, Ward M, Heo JY, Huynh E, Ledesma MA, Fuerst JA, Vinayak A. Computed tomography scan accuracy for the prediction of lobe and division of liver tumors by four board-certified radiologists. Vet Surg 2024; 53:1313-1325. [PMID: 39057837 DOI: 10.1111/vsu.14142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 05/25/2024] [Accepted: 06/08/2024] [Indexed: 07/28/2024]
Abstract
OBJECTIVE (1) Evaluate the accuracy of computed tomography (CT) scans for localization of liver masses. (2) Assess the agreement between radiologists on localization. (3) Determine if location influences the accuracy of localization and histopathologic diagnosis. (4) Determine what lobar vasculature radiologists found most useful for localization. STUDY DESIGN Retrospective. ANIMALS A total of 67 client-owned dogs with a total of 75 hepatic masses. METHODS Records were reviewed for relevant data. Localization for each hepatic mass was performed by four radiologists (JH, EH, ML, JF) independently. RESULTS Overall accuracy of mass localization was 217/292 (74.3%) by lobe and 264/300 (88%) by division. Accuracy for the quadrate lobe (11/27, 40.7%) was lower (p < .05) than for the caudate process of the caudate lobe (19/24, 79.2%), left medial lobe (47/64, 73.4%) and left lateral lobe (95/101, 89.6%). Accuracy for the right lateral lobe (17/35, 48.6%) was lower (p < .05) lower than for the left lateral lobe (95/101, 89.6%). Accuracy of localization was 173/192 (90.1%) for masses located in the left division, 37/48 (77.1%) in the central division, and 53/60 (88.3%) for the right division. The agreement (kappa) between radiologists was good (0.61-0.8) to excellent (0.81-1) for division and moderate (0.41-0.6) to good for lobe localization. CONCLUSION CT localization was more accurate for division than lobe localization of canine hepatic masses. Similarly, radiologists had a better agreement for division than lobe localization. CLINICAL SIGNIFICANCE This study supports CT as a useful modality for liver mass localization based on division. CT localization to specific lobes should be interpreted with some caution.
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Affiliation(s)
- Brian J Thomsen
- Department of Surgery, BluePearl Pet Hospital, Levittown, Pennsylvania, USA
| | - Michael Ward
- Sydney School of Veterinary Science, The University of Sydney, Camden, New South Wales, Australia
| | - Jin Y Heo
- Department of Diagnostic Imaging, VCA West Coast Specialty and Emergency Animal Hospital, Fountain Valley, California, USA
| | - Elizabeth Huynh
- Department of Diagnostic Imaging, VCA West Coast Specialty and Emergency Animal Hospital, Fountain Valley, California, USA
| | - Marc A Ledesma
- Department of Diagnostic Imaging, VCA California Veterinary Specialists Ontario, Ontario, California, USA
| | - Jason A Fuerst
- Department of Diagnostic Imaging, VCA California Veterinary Specialists Murrieta, Murrieta, California, USA
| | - Arathi Vinayak
- Department of Surgical Oncology, VCA West Coast Specialty and Emergency Animal Hospital, Fountain Valley, California, USA
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de la Vega M, Robbins M, Howes M, Vieson M. Liver Lipoma in a Dog: Case Report and Literature Review. J Am Anim Hosp Assoc 2023; 59:188-192. [PMID: 37432785 DOI: 10.5326/jaaha-ms-7330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2023] [Indexed: 07/13/2023]
Abstract
Lipoma of the liver has not been reported in dogs. An 8 yr old spayed female Great Dane was referred for diagnostic workup of abdominal distention. Computed tomography showed fat-attenuating masses with negative attenuation values (variable between -60 to -40 Hounsfield units) and minimal contrast uptake within the left cranial abdomen. Left lateral and right medial liver lobectomies were performed to remove two liver masses. Histopathology showed large lipomas arising from within the hepatic parenchyma. Immunohistochemistry for smooth muscle actin was negative, consistent with true lipomas. The dog was euthanized 8 mo later because of causes likely unrelated to the liver lipoma. This is the first case report of lipoma in the liver of a dog. The purpose of this case report and brief literature review is to provide evidence that surgical excision of fat-attenuating masses within the liver that are consistent with lipoma using immunohistochemistry can be curative.
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Affiliation(s)
- Miranda de la Vega
- From Surgery Department, Ocean State Veterinary Specialists, East Greenwich, Rhode Island (M.d.l.V.)
| | - Mitch Robbins
- Surgery Department (M.R.), Veterinary Specialty Center of Buffalo Grove, Bannockburn, Illinois
| | - Mark Howes
- Diagnostic Imaging Department (M.H.), Veterinary Specialty Center of Buffalo Grove, Bannockburn, Illinois
| | - Miranda Vieson
- Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois, Urbana, Illinois
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Vatnikov Y, Rudenko A, Gnezdilova L, Sotnikova E, Byakhova V, Piven E, Kulikov E, Petrov A, Drukovskiy S, Petrukhina O. Clinical and diagnostic characteristics of the development of hepatocardial syndrome in black and white cows in the early lactation period. Vet World 2022; 15:2259-2268. [PMID: 36341078 PMCID: PMC9631371 DOI: 10.14202/vetworld.2022.2259-2268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/19/2022] [Indexed: 11/18/2022] Open
Abstract
Background and Aim: It is known that during the early postpartum and lactation periods in dairy cows, metabolic disorders develop, that is, ketosis, which can lead to secondary damage to internal organs. Therefore, it is important to address the issues of changing the lactating cows’ clinical, laboratory, and physiological parameters regarding the development of hepatocardial syndrome. This study aimed to provide clinical and diagnostic justification for developing hepatocardial syndrome in highly productive dairy cows. Materials and Methods: The study was conducted on 20 black and white cows in the early postpartum period (7–10 days after birth), with a milk production level of >4500 kg of milk during the previous lactation period, a positive result in the formol colloid sedimentary test, the presence of deafness and splitting of heart sounds, changes in the size, or increased pain sensitivity of the percussion field of the liver. Clinically healthy dairy cows in the early postpartum period were used as controls (n = 24). Clinical, electrocardiographic, echocardiographic, and biochemical parameters were also evaluated. Results: Dairy cows with hepatocardial syndrome developed arterial hypertension and sinus tachycardia, which led to a significant decrease in PQ and QT intervals at ECG. A significant increase in the diastolic size of the interventricular septum, systolic size of the free wall of the left ventricle, and diastolic and systolic sizes of the left ventricle and a significant decrease in the shortening fraction of the left ventricular myocardium were observed in the cows due to the development of hepatocardial syndrome. The affected cows demonstrated a significant increase in serum activity of gamma-glutamyl transferase, alanine aminotransferase, lactate dehydrogenase, creatine phosphokinase, alkaline phosphatase, troponin, malondialdehyde, diene conjugates, and ceruloplasmin and a decrease in glucose concentration. In addition, they demonstrated decreased activity of superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase. Conclusion: Hepatocardial syndrome in dairy cows occurs due to ketosis, characterized by arterial hypertension, sinus tachycardia, a moderate decrease in myocardial contractility, oxidative stress, and cytolysis of cardiomyocytes and hepatocytes. Therefore, the control and prevention of the development of hepatocardial syndrome will make it possible to maintain the productive health and longevity of dairy cows.
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Affiliation(s)
- Yury Vatnikov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Andrey Rudenko
- Department of Veterinary Medicine, State University of Food Production, Moscow, Russia
| | - Larisa Gnezdilova
- Department of Diseases, Diagnostics, Therapy, Obstetrics and Reproduction of Animals, Moscow State Academy of Veterinary Medicine and Biotechnology - MVA Named after K.I. Skryabin, Moscow, Russia
| | - Elena Sotnikova
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Varvara Byakhova
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Elena Piven
- Department of Public Health, Healthcare, and Hygiene, Institute of Medicine, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Evgeny Kulikov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Aleksandr Petrov
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Stanislav Drukovskiy
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
| | - Olesya Petrukhina
- Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
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Gibson EA, Goldman RE, Culp WTN. Comparative Oncology: Management of Hepatic Neoplasia in Humans and Dogs. Vet Sci 2022; 9:vetsci9090489. [PMID: 36136704 PMCID: PMC9505178 DOI: 10.3390/vetsci9090489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Primary hepatic neoplasia is uncommonly reported in dogs. Hepatocellular carcinoma (HCC) is the most frequent neoplasia identified in dogs and considerable effort has been committed towards identifying definitive and palliative treatment options. HCC is well recognized in humans as a sequelae of liver disease such as hepatitis or cirrhosis, while in dogs a similar link has failed to be fully elucidated. Management of HCC in people may be curative or palliative dependent on staging and transplant eligibility. Despite differences in etiology, there is substantial similarity between treatment options for liver neoplasia in human and veterinary medicine. The below summary provides a comparative discussion regarding hepatic neoplasia in dogs and people with a specific focus on HCC. Diagnosis as well as descriptions of the myriad treatment options will be reviewed.
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Affiliation(s)
- Erin A. Gibson
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA
| | - Roger E. Goldman
- Department of Radiology, University of California-Davis Medical Center, Sacramento, CA 95817, USA
| | - William T. N. Culp
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA 95616, USA
- Correspondence:
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Whitlock J, Alexander A, Williams C, Griffin S, Allerton F. Budd–Chiari syndrome secondary to caudal vena cava obstruction by vascularly invasive lymphoma in a cat. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- James Whitlock
- Willows Veterinary Centre and Referral Service Solihull West Midlands UK
| | | | - Claire Williams
- Willows Veterinary Centre and Referral Service Solihull West Midlands UK
| | - Sally Griffin
- Willows Veterinary Centre and Referral Service Solihull West Midlands UK
| | - Fergus Allerton
- Willows Veterinary Centre and Referral Service Solihull West Midlands UK
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Kim SH, Seung BJ, Cho SH, Lim HY, Bae MK, Sur JH. Arginase-1 and P-glycoprotein are downregulated in canine hepatocellular carcinoma. J Vet Sci 2021; 22:e61. [PMID: 34423599 PMCID: PMC8460467 DOI: 10.4142/jvs.2021.22.e61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 05/24/2021] [Accepted: 06/20/2021] [Indexed: 11/29/2022] Open
Abstract
Background Hepatocellular carcinoma is the most common primary hepatic malignancy in humans and dogs. Several differentially expressed molecules have been studied and reported in human hepatocellular carcinoma and non-neoplastic liver lesions. However, studies on the features of canine hepatocellular carcinoma are limited, especially related to the differential characteristics of neoplastic and non-neoplastic lesions. Objectives The study's objective was 1) to examine and evaluate the expression of arginase-1, P-glycoprotein, and cytokeratin 19 in canine liver tissues and 2) to investigate the differential features of hepatocellular carcinomas, liver tissue with non-neoplastic lesions, and paracancerous liver tissues in dogs. Methods The expression levels of three markers underwent immunohistochemical analysis in 40 non-neoplastic liver tissues, 32 hepatocellular carcinoma tissues, and 11 paracancerous liver tissues. Scoring of each marker was performed semi-quantitatively. Results Arginase-1 and P-glycoprotein were significantly downregulated in hepatocellular carcinoma, compared with hepatic tissues with non-neoplastic diseases (p < 0.001). Expression levels of arginase-1 and P-glycoprotein were also significantly lower in hepatocellular carcinoma than in paracancerous liver tissues (arginase-1, p = 0.0195; P-glycoprotein, p = 0.047). Few cytokeratin 19-positive hepatocytes were detected and only in one hepatocellular carcinoma and one cirrhotic liver sample. Conclusions The results of this study suggest that downregulation of arginase-1 and P-glycoprotein is a feature of canine hepatocellular carcinoma; thus, those markers are potential candidates for use in differentiating hepatocellular carcinomas from non-neoplastic liver lesions in dogs.
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Affiliation(s)
- Soo-Hyeon Kim
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Byung-Joon Seung
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Seung-Hee Cho
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Ha-Young Lim
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Min-Kyung Bae
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Jung-Hyang Sur
- Department of Veterinary Pathology, Small Animal Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea.
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Ko J, Hwang J, Yoon H, Eom K, Kim J. Case Report: Multimodal Imaging Features of Pedunculated Liver Masses in Seven Dogs. Front Vet Sci 2020; 7:581922. [PMID: 33330705 PMCID: PMC7732477 DOI: 10.3389/fvets.2020.581922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/26/2020] [Indexed: 11/17/2022] Open
Abstract
This study describes the multimodal imaging characteristics of pedunculated liver masses in seven dogs [Cocker Spaniel (n = 2), Maltese (n = 1), Shih-Tzu (n = 2), and Schnauzer (n = 2)]. These masses are anatomic variants of hepatic masses in which the center of the mass lies outside the liver contour. Prior to referral, only one dog had been diagnosed with a hepatic mass, four had been diagnosed with mid-abdominal masses of unknown origin, and two had been misdiagnosed with splenic head and pancreatic masses. Using radiographs, the mass locations were classified as cranioventral (n = 3), mid-abdominal (n = 2), or craniodorsal (n = 2). The gastric axis was deviated in various directions in four cases. Based on computed tomography (CT) findings, the masses were noted to originate from every liver lobe (two from the left lateral lobe) and to possess parenchymal (n = 6) or vascular (n = 1) pedicles. The histopathological results showed that three masses were benign [hepatic adenoma (n = 1) and nodular hyperplasia (n = 2)] and four were malignant [hepatocellular carcinoma (n = 3) and cholangiocarcinoma (n = 1)]. For three dogs, triple-phase CT maximum intensity projection images in the arterial phase clearly showed that the masses were connected to the hepatic artery. We propose that a pedunculated liver mass should be considered as a differential diagnosis when a mass is located in the mid-abdomen, even if it is separated from the liver and with the gastric axis deviated in various directions. We consider CT imaging to be a useful tool for diagnosis, evaluation, and surgical planning in dogs with a pedunculated liver mass.
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Affiliation(s)
- Jaeeun Ko
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Jeongyeon Hwang
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Hakyoung Yoon
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Jeonbuk National University, Jeonju, South Korea
| | - Kidong Eom
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Jaehwan Kim
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
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