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Villena Salinas J, Montellano Fenoy AJ, Sanz Viedma S, Suárez Muñoz MÁ. Steatotic hepatocellular adenoma: an unusual cause of a hypermetabolic liver lesion. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2023; 115:452-453. [PMID: 35791794 DOI: 10.17235/reed.2022.9026/2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A 22-year-old woman with a history of surgically treated pelvic teratoma and solid liver lesion in the extension study. Radiological follow-up was decided. This liver lesion experienced a progressive increase in size, reaching 6 cm. Contrast-enhanced liver MRI was performed, revealing a heterogeneous mass in the right hepatic lobe with non-hepatocyte-like behaviour. With this information, the following entities were ruled out: haemangioma, adenoma, hepatocarcinoma and focal nodular hyperplasia. Given that it could be a teratoma metastasis, a tumour of any other origin or a non-tumoral lesion with no hepatocyte component, it was decided to perform a 2-[18F]FDG PET/CT scan. It showed the liver mass with notable glycolytic hypermetabolism, suggestive of malignancy. In a multidisciplinary committee, it was decided to perform a laparoscopic right hepatectomy. Pathological examination revealed a benign hepatocytic lesion compatible with a steatotic adenoma.
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Affiliation(s)
| | | | - Salomé Sanz Viedma
- UGC Medicina Nuclear, Hospital Universitario Virgen de la Victoria, ESPAÑA
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2
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Focal Benign Liver Lesions and Their Diagnostic Pitfalls. Radiol Clin North Am 2022; 60:755-773. [DOI: 10.1016/j.rcl.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Doroudinia A, Karam MB, Ghadimi N, Yousefi F. Steatotic Hepatitis Presenting as a Huge Hypermetabolic Liver Mass. Clin Nucl Med 2022; 47:e399-e400. [PMID: 35175943 DOI: 10.1097/rlu.0000000000004098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT FDG PET/CT scan is a diagnostic imaging modality for oncologic patients, but with false-positive findings in inflammatory diseases. In this interesting case, we present a 24-year-old woman with history of giant cell tumor of the bone (lumbar vertebrae) who underwent whole-body FDG PET/CT scan for treatment response evaluation. FDG PET/CT scan demonstrated a large hypermetabolic tumoral mass lesion in segment VI/VII of the right hepatic lobe. A range of malignant versus benign lesions should be considered as differential diagnoses, including metastasis, primary cholangiocarcinoma, hepatocellular carcinoma, focal nodular hyperplasia, and infection. Final diagnosis of "steatotic hepatitis" after CT-guided biopsy was established.
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Affiliation(s)
- Abtin Doroudinia
- From the Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Sarikaya I, Schierz JH, Sarikaya A. Liver: glucose metabolism and 18F-fluorodeoxyglucose PET findings in normal parenchyma and diseases. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2021; 11:233-249. [PMID: 34513277 PMCID: PMC8414405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Liver has a complex and unique energy metabolism and plays a major role in glucose homeostasis. Liver is the main control center for glycogenesis, glycogenolysis, glycolysis and gluconeogenesis which are essential to provide energy for other tissues. Liver meets its own energy need from various sources which is mainly glucose in the fed state and fatty acids in the fasting state. In this review article, we will mainly describe the glucose metabolism of the liver, effect of various factors on 18F-fluorodeoxyglucose (FDG) activity/uptake in the normal liver and 18F- FDG positron emission tomography (PET) uptake patterns in various malignant and benign liver pathologies. Brief information on metabolomics profiling analyses in liver disorders will also be provided.
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Affiliation(s)
- Ismet Sarikaya
- Department of Nuclear Medicine, Kuwait University Faculty of MedicineSafat, Kuwait
| | | | - Ali Sarikaya
- Department of Nuclear Medicine, Trakya University Faculty of MedicineTurkey
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Sureka B, Rastogi A, Mukund A, Sarin SK. False-positive 18F fluorodeoxyglucose positron emission tomography-avid benign hepatic tumor: Previously unreported in a male patient. Indian J Radiol Imaging 2021; 28:200-204. [PMID: 30050244 PMCID: PMC6038214 DOI: 10.4103/ijri.ijri_170_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We report a case of 18F fluorodeoxyglucose (FDG) positron emission tomography (PET)–computed tomography-avid histologically confirmed inflammatory hepatic adenoma in a 77-year-old male patient without any history of steroid, alcohol use. This is the first case report of inflammatory hepatic adenoma in a male patient documented in the published literature showing uptake on 18F-FDG PET. Previous single case report of 18F-FDG PET-avid hepatic adenoma in a male patient was of hepatocyte nuclear factor-1-α subtype.
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Affiliation(s)
- Binit Sureka
- Department of Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Archana Rastogi
- Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Amar Mukund
- Department of Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
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18F-FDG PET/CT of hepatocellular adenoma subtypes and review of literature. Abdom Radiol (NY) 2021; 46:2604-2609. [PMID: 33555390 DOI: 10.1007/s00261-021-02968-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/13/2021] [Accepted: 01/16/2021] [Indexed: 10/22/2022]
Abstract
INTRODUCTION This study evaluates 18F-FDG PET/CT imaging characteristics of pathologically proven hepatocellular adenoma (HCA) subtypes. METHODS This is a retrospective review of an institutional database (2011-2017) for subjects with a pathologic diagnosis of hepatic adenomas established within 6 months of a pre-treatment 18F-FDG PET/CT exam. An expert pathological review by a hepatopathologist was performed to confirm diagnosis and subtype HCA. A review of the 18F-FDG PET/CT exams was performed by two board-certified nuclear radiologists in consensus. Corresponding demographic and clinical data were obtained by electronic chart review. RESULTS Nine subjects were identified. An HCA subtype was established in seven subjects (4 HNF1A-mutated and 3 Inflammatory). The mean HCA lesion size was 2.8 cm (range 0.6-6.2, SD 2.0) with a mean SUVmax of 5.9 (range 2.1-18.9, SD 5.1). The SUV values of HNF1A-mutated HCA were significantly higher than inflammatory HCA: lesion SUVmax (5.3 ± 1.48 vs. 2.8 ± 0.59, p < 0.033), lesion-to-liver SUVmax ratio (1.4 ± 0.22 vs. 0.8 ± 0.21, p = 0.031), lesion SUVmean (3.6 ± 0.37 vs. 2.0 ± 0.46, p = 0.0086). CONCLUSION HNF1A-mutated HCA may have greater SUV values than inflammatory HCA on 18F-FDG PET/CT exams. However, there are contradictory data in the literature and further investigation is warranted.
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Liu W, Delwaide J, Bletard N, Delvenne P, Meunier P, Hustinx R, Detry O. 18-Fluoro-deoxyglucose uptake in inflammatory hepatic adenoma: A case report. World J Hepatol 2017; 9:562-566. [PMID: 28469812 PMCID: PMC5395805 DOI: 10.4254/wjh.v9.i11.562] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 12/25/2016] [Accepted: 03/22/2017] [Indexed: 02/06/2023] Open
Abstract
Positron emission tomography computed tomography (PET-CT) using 18-Fluoro-deoxyglucose (18FDG) is an imaging modality that reflects cellular glucose metabolism. Most cancers show an uptake of 18FDG and benign tumors do not usually behave in such a way. The authors report herein the case of a 38-year-old female patient with a past medical history of cervical intraepithelial neoplasia and pheochromocytoma, in whom a liver lesion had been detected with PET-CT. The tumor was laparoscopically resected and the diagnosis of inflammatory hepatic adenoma was confirmed. This is the first description of an inflammatory hepatic adenoma with an 18FDG up-take.
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Fat-Containing Hypermetabolic Masses on FDG PET/CT: A Spectrum of Benign and Malignant Conditions. AJR Am J Roentgenol 2016; 207:1095-1104. [PMID: 27490138 DOI: 10.2214/ajr.16.16066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This article focuses on identifying the imaging appearances of hypermetabolic fatty masses and masslike lesions on PET/CT and understanding the diagnostic challenges radiologists may face while interpreting findings of these lesions on PET/CT. This article provides an approach to aid in the diagnosis of these lesions and the appropriate management of patients. CONCLUSION Both malignant and benign fat-containing masses and masslike lesions can show hypermetabolic activity on PET/CT. Although the differential diagnosis is broad, clinical history, anatomic location, and knowledge of anatomic variants and imaging features can help radiologists avoid misinterpretation of benign fatty lesions as malignancy.
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Ozaki K, Harada K, Terayama N, Matsui O, Saitoh S, Tomimaru Y, Fujii T, Gabata T. Hepatocyte nuclear factor 1α-inactivated hepatocellular adenomas exhibit high (18)F-fludeoxyglucose uptake associated with glucose-6-phosphate transporter inactivation. Br J Radiol 2016; 89:20160265. [PMID: 27197745 DOI: 10.1259/bjr.20160265] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE This immunohistochemical study aimed to elucidate the molecular mechanism underlying the increased fluorine-18 fludeoxyglucose (FDG) uptake in hepatocyte nuclear factor 1α (HNF1α)-inactivated hepatocellular adenomas (H-HCAs). METHODS Three resected H-HCAs were studied using FDG positron emission tomography. Each maximum standardized uptake value (SUVmax) was determined. Resected samples were subjected to immunohistochemical staining for the following glucose metabolism-related proteins: glucose transporter 1 (GLUT1) and glucose transporter 2 (GLUT2), indicative of uptake and transport of glucose into cellular cytoplasm; hexokinase 2 (HK2) and hexokinase 4 (HK4), glucose phosphorylation; glucose-6-phosphate transporter 1 (G6PT1), uptake and transport of glucose-6-phosphate into endoplasmic reticulum; and glucose-6-phosphatase (G6Pase), dephosphorylation. RESULTS All three H-HCAs exhibited increased FDG intake, with an average SUVmax of 6.6 (range: 5.2-8.2). No sample expressed GLUT1 and HK2; all the samples exhibited equivalent GLUT2 and HK4 expression, equivalent or slightly increased G6Pase expression and significantly decreased G6PT1 expression relative to the non-neoplastic hepatocytes of background liver. CONCLUSION The increased FDG uptake observed in H-HCAs is associated with GLUT2 and HK4 expression and G6PT1 inactivation. ADVANCES IN KNOWLEDGE H-HCA exhibits a high FDG uptake owing to the inactivation of G6PT1, which is transcriptionally regulated by HNF1α.
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Affiliation(s)
- Kumi Ozaki
- 1 Department of Radiology, Takaoka City Hospital, Takaoka, Japan.,Department of Radiology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Kenichi Harada
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Noboru Terayama
- 1 Department of Radiology, Takaoka City Hospital, Takaoka, Japan
| | - Osamu Matsui
- Department of Radiology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Satoshi Saitoh
- Department of Hepatology, Toranomon Hospital, Tokyo, Japan
| | - Yoshito Tomimaru
- Department of Surgery, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - Takeshi Fujii
- Department of Pathology, Toranomon Hospital, Tokyo, Japan
| | - Toshifumi Gabata
- Department of Radiology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
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Wang CH, Sun CK, Jiang JS, Tsai MH. Tumor-Like Liver Abscess Mimicking Malignancy With Lung Metastases in a Patient With Acute Renal Failure: A Case Report. Medicine (Baltimore) 2016; 95:e3145. [PMID: 26986170 PMCID: PMC4839951 DOI: 10.1097/md.0000000000003145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The worldwide incidence of Klebsiella pneumoniae liver abscess (KLA) is increasing. It is important to accurately diagnose this life-threatening disease to provide timely and appropriate treatment. Here we report the case of a 38-year-old man with acute renal failure and a tumor-like liver abscess and septic pulmonary embolism. Initially, his clinical symptoms, laboratory tests, and radiological findings presented equivocal results of malignancy with metastases. Fine needle aspiration of liver tumor was performed, which showed purulent material with a culture positive for K pneumoniae. KLA symptoms are atypical, and radiological findings may mimic a malignancy with tumor necrosis. In some circumstances, liver aspiration biopsy may be necessary to confirm the real etiology, leading to prompt and timely treatment. Moreover, we should be alert for the impression of KLA when facing a diabetic patient with liver mass lesion and acute renal failure.
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Affiliation(s)
- Chih Hsin Wang
- From the Division of General Medicine, Department of Internal Medicine (CHW, J-SJ, MHT), Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan (ROC); and Division of Gastroenterology, Department of Internal Medicine (C-KS), Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan (ROC)
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Lee SY, Kingham TP, LaGratta MD, Jessurun J, Cherqui D, Jarnagin WR, Kluger MD. PET-avid hepatocellular adenomas: incidental findings associated with HNF1-α mutated lesions. HPB (Oxford) 2016; 18:41-8. [PMID: 26776850 PMCID: PMC4750225 DOI: 10.1016/j.hpb.2015.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/06/2015] [Accepted: 07/07/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Hepatocellular adenoma (HCA) is the second most common benign liver neoplasm and occurs predominantly in women in their reproductive years. Positron emission tomography (PET) using [18F] fluorodeoxyglucose (FDG) is commonly used in cancer staging, surveillance and evaluation of treatment response. PET-avid HCA are rare and can be falsely interpreted as malignancies. METHODS A retrospective review of four institutions' database was performed to identify the PET-avid HCAs with clinico-pathological correlation. RESULTS Nine patients with histological proven PET-avid HCA was identified. Eight out of 9 patients were female with a median age at diagnosis of 44 years. All patients' tumors with available histological subtyping (8/8) were HNF1-α mutated and had no inflammatory changes; 6 out the 9 lesions had prominent (>50%) steatotic changes. CONCLUSION Hepatocellular adenomas, specifically the HNF1-α subtype, can cause false-positive PET findings when seeking to identify malignancy. Concomitantly, PET-CT may have the potential to identify the HCA histopathologic variant with the lowest malignant and hemorrhagic potential.
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Affiliation(s)
- Ser Yee Lee
- Department of Surgery, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, United States,Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore
| | - T. Peter Kingham
- Department of Surgery, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, United States
| | - Maria D. LaGratta
- New York-Presbyterian Hospital – Weill Cornell Medical Center, Diagnostic Radiology, 1305 York Avenue, New York, NY 10021, United States
| | - Jose Jessurun
- New York Presbyterian Hospital – Weill Cornell Medical College, Surgical Pathology, 525 East 68th Street, New York, NY 10065, United States
| | - Daniel Cherqui
- Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - William R. Jarnagin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, United States
| | - Michael D. Kluger
- New York Presbyterian Hospital Columbia Presbyterian Medical Center, Department of Surgery, 161 Fort Washington Avenue 823, New York, NY 10024, United States,Correspondence Michael D. Kluger, New York Presbyterian Hospital Columbia Presbyterian Medical Center, Department of Surgery, 161 Fort Washington Avenue 823, New York, NY 10024, United States.
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Lee SY, Kingham TP, LaGratta MD, Jessurun J, Cherqui D, Jarnagin WR, Kluger MD. PET-avid hepatocellular adenomas: incidental findings associated with HNF1-α mutated lesions. HPB (Oxford) 2015:n/a-n/a. [PMID: 26472264 DOI: 10.1111/hpb.12489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 07/07/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatocellular adenoma (HCA) is the second most common benign liver neoplasm and occurs predominantly in women in their reproductive years. Positron-emission tomography (PET) using [18F] fluorodeoxyglucose (FDG) is commonly used in cancer staging, surveillance and evaluation of the treatment response. PET-avid HCA is rare and can be falsely interpreted as malignancies. METHODS A retrospective review of four institutions' database was performed to identify the PET-avid HCAs with clinico-pathological correlation. RESULTS Nine patients with histological proven PET-avid HCA was identified. Eight out of nine patients were female with a median age at diagnosis of 44 years. All patients' tumours with available histological subtyping (8/8) were HNF1-α mutated and had no inflammatory changes; six out the nine lesions had prominent (>50%) steatotic changes. CONCLUSION Hepatocellular adenomas, specifically the HNF1-α subtype, can cause false-positive PET findings when seeking to identify malignancy. Concomitantly, PET-CT may have the potential to identify the HCA histopathological variant with the lowest malignant and haemorrhagic potential.
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Affiliation(s)
- Ser Yee Lee
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, New York Presbyterian Hospital Weill-Cornell Medical Center, New York, NY, USA
- Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore, Singapore
| | - T Peter Kingham
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria D LaGratta
- Diagnostic Radiology, New York-Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, USA
| | - Jose Jessurun
- Surgical Pathology, New York Presbyterian Hospital - Weill Cornell Medical College, New York, NY, USA
| | - Daniel Cherqui
- Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, New York Presbyterian Hospital Weill-Cornell Medical Center, New York, NY, USA
- Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - William R Jarnagin
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael D Kluger
- Department of Surgery, Section of Hepatobiliary Surgery and Liver Transplantation, New York Presbyterian Hospital Weill-Cornell Medical Center, New York, NY, USA
- Department of Surgery, New York Presbyterian Hospital Columbia Presbyterian Medical Center, New York, NY, USA
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Belghiti J, Cauchy F, Paradis V, Vilgrain V. Diagnosis and management of solid benign liver lesions. Nat Rev Gastroenterol Hepatol 2014; 11:737-49. [PMID: 25178878 DOI: 10.1038/nrgastro.2014.151] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
More and more asymptomatic benign liver tumours are discovered incidentally and can be divided into regenerative lesions and true neoplastic lesions. The most common regenerative lesions include hemangioma, focal nodular hyperplasia and inflammatory pseudotumours of the liver. Neoplastic lesions include hepatocellular adenomas and angiomyolipomas. Regenerative lesions rarely increase in volume, do not yield a higher risk of complications and usually do not require treatment. By contrast, hepatocellular adenomas and angiomyolipomas can increase in volume and are associated with a risk of complications. Large hepatocellular adenomas (>5 cm in diameter) are undoubtedly associated with a risk of bleeding and malignant transformation, particularly the inflammatory (also known as telangiectatic) and β-catenin mutated subtypes. Accurate diagnosis needs to be obtained to select patients eligible for surgical resection. MRI has markedly improved diagnosis and can identify the major hepatocellular adenomas subtypes. The use of biopsy results to inform the indication for resection remains questionable. However, when diagnosis remains uncertain after imaging, percutaneous biopsy could help improve diagnostic accuracy.
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Affiliation(s)
- Jacques Belghiti
- Department of Hepatobiliary Surgery and Liver Transplantation, Beaujon Hospital, University Paris-Diderot, 100 Boulevard du General Leclerc, 92110 Clichy, France
| | - François Cauchy
- Department of Hepatobiliary Surgery and Liver Transplantation, Beaujon Hospital, University Paris-Diderot, 100 Boulevard du General Leclerc, 92110 Clichy, France
| | - Valérie Paradis
- Department of Pathology, Beaujon Hospital, University Paris-Diderot, 100 Boulevard du General Leclerc, 92110 Clichy, France
| | - Valérie Vilgrain
- Department of Radiology, Beaujon Hospital, University Paris-Diderot, 100 Boulevard du General Leclerc, 92110 Clichy, France
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Hepatocellular adenoma showing high uptake of (18)F-fluorodeoxyglucose (FDG) via an increased expression of glucose transporter 2 (GLUT-2). Clin Imaging 2014; 38:888-91. [PMID: 25034402 DOI: 10.1016/j.clinimag.2014.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 05/19/2014] [Accepted: 06/02/2014] [Indexed: 12/24/2022]
Abstract
Hepatocellular adenoma (HCA) is a benign liver neoplasm composed of hepatocytes. We experienced HCA demonstrating a high uptake of (18)F-fluorodeoxyglucose (FDG) on positron emission tomography-computed tomography, mimicking a malignant tumor. The mechanism underlying the uptake of FDG has not been identified. Here, we discuss that an enhancement of glucose metabolism via an increased expression of glucose transporter 2 may have a role in the high uptake of FDG shown by HCAs.
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