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Garcovich M, Faccia M, Meloni F, Bertolini E, de Sio I, Calabria G, Francica G, Vidili G, Riccardi L, Zocco MA, Ainora ME, Ponziani FR, De Gaetano AM, Gasbarrini A, Rapaccini GL, Pompili M. Contrast-enhanced ultrasound patterns of hepatocellular adenoma: an Italian multicenter experience. J Ultrasound 2018; 22:157-165. [PMID: 30306412 DOI: 10.1007/s40477-018-0322-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/14/2018] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Hepatocellular adenoma (HCA) is a rare benign monoclonal neoplasm, recently categorized on genetic and histopathological basis into four subtypes with different biological behaviors. Since contrast-enhanced ultrasonography (CEUS) is nowadays a well-established technique for liver nodule characterization, the aim of our study was to assess CEUS features of HCAs to identify criteria that correlate with different HCA subtypes as compared to histopathologic examination and other imaging modalities. METHODS We retrospectively analyzed data of patients with histology-proven HCA who underwent CEUS, computed tomography or magnetic resonance imaging (MRI) in seven different Italian ultrasound units. RESULTS The study enrolled 19 patients (16 females; 69% with concomitant/prior use of oral contraceptives): the mean size of all HCAs was 4.2 cm (range 1.6-7.1 cm); 14/19 had inflammatory HCAs (I-HCA), 1/19 β-catenin-activated HCA, and the others unclassified HCAs. On CEUS, during the arterial phase, all but one HCA displayed a rapid enhancement, with 89% of these showing centripetal and 11% centrifugal filling pattern, whereas during the portal and late venous phase 58% of HCA showed washout and the remaining 42% displayed persistent enhancement. In particular, among I-HCAs 7/14 showed no washout, 3/14 and 4/14 showed washout in the portal or late phase, respectively. CONCLUSIONS This dataset represents one of the few published experiences on HCAs and CEUS in Italy and shows that HCAs are hypervascularized in the arterial phase usually with a centripetal flow pattern and have a heterogeneous behavior in portal and late phase. In particular, occurrence of delayed washout on CEUS but not on MRI is frequently observed in the subtype of I-HCA.
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Affiliation(s)
- Matteo Garcovich
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy.
| | - Mariella Faccia
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Franca Meloni
- Department of Interventional Ultrasound, Casa di Cura Igea, Milan, Italy.,Department of Radiology, University of Wisconsin-Madison, Madison, USA
| | - Emanuela Bertolini
- Department of Internal Medicine, Hepatology and Gastroenterology, San Paolo Hospital, Università degli Studi di Milano, Milan, Italy
| | - Ilario de Sio
- Hepatogastroenterology Unit, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Giosuele Calabria
- IX Interventional Ultrasound Unit for Infectious Diseases, AORN dei Colli, Cotugno Hospital, Naples, Italy
| | - Giampiero Francica
- Interventional Ultrasound Unit, Pineta Grande Hospital, Castel Volturno, Italy
| | - Gianpaolo Vidili
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Laura Riccardi
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Maria Assunta Zocco
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Maria Elena Ainora
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Francesca Romana Ponziani
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Anna Maria De Gaetano
- Department of Radiology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Rome, Italy
| | - Antonio Gasbarrini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Gian Ludovico Rapaccini
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
| | - Maurizio Pompili
- Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of Sacred Heart, Largo A. Gemelli 8, 00168, Rome, Italy
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Abstract
Biliary cystadenoma is a rare cystic neoplasms of liver that usually occurs in middle-aged women characterized by multiloculated cysts with internal septae and mural nodules. Unilocular biliary cystadenomas are rare and are difficult to differentiate from other cysts by radiology. Biliary cystadenomas are slow growing benign lesions that are easily resectable with a reported recurrence rate of 90% when the resection is incomplete. We present a case of 65-year-old male with unilocular biliary cystadenoma with mesenchymal stroma who presented with abdominal pain and distension. Laparotomy followed by cystectomy was done and postoperative period was uneventful with no abnormal biochemical, heamatological or imaging findings. Preoperative radio-imaging techniques may not always be helpful in arriving at a specific diagnosis in such cases. Hence thorough sampling and a careful histopathological examination is considered gold standard for specific diagnosis.
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Affiliation(s)
- Johnsy Merla Joel
- Assistant Professor, Department of Pathology, Tirunelveli Medical College , Tirunelveli, Tamil Nadu, India
| | - Suresh Durai Jeyasingh
- Professor, Department of Pathology, Tirunelveli Medical College , Tirunelveli, Tamil Nadu, India
| | - Shantaraman Kalyanaraman
- Professor and HOD, Department of Pathology, Tirunelveli Medical College , Tirunelveli, Tamil Nadu, India
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Abstract
Hepatocellular adenomas (HCA) are rare benign liver tumors. Recent technological advancements have helped in the early identification of such lesions. However, precise diagnosis of hepatocellular incidentalomas remains challenging. Studies at the molecular level have provided new insights into the genetics and pathophysiology of these lesions. These in turn have raised questions over their existing management modalities. However, the rarity of the tumor still restricts the quality of evidence available for current recommendations and guidelines. This article provides a comprehensive review on the etiology, molecular biology, patho-physiology, clinical manifestations, and complications associated with HCA. It also elaborates on the genetic advancements, existing diagnostic tools and current guidelines for management for such lesions.
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Hennedige TP, Hallinan JTPD, Leung FP, Teo LLS, Iyer S, Wang G, Chang S, Madhavan KK, Wee A, Venkatesh SK. Comparison of magnetic resonance elastography and diffusion-weighted imaging for differentiating benign and malignant liver lesions. Eur Radiol 2015; 26:398-406. [PMID: 26032879 DOI: 10.1007/s00330-015-3835-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 04/23/2015] [Accepted: 05/07/2015] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Comparison of magnetic resonance elastography (MRE) and diffusion-weighted imaging (DWI) for differentiating malignant and benign focal liver lesions (FLLs). METHODS Seventy-nine subjects with 124 FLLs (44 benign and 80 malignant) underwent both MRE and DWI. MRE was performed with a modified gradient-echo sequence and DWI with a free breathing technique (b = 0.500). Apparent diffusion coefficient (ADC) maps and stiffness maps were generated. FLL mean stiffness and ADC values were obtained by placing regions of interest over the FLLs on stiffness and ADC maps. The accuracy of MRE and DWI for differentiation of benign and malignant FLL was compared using receiver operating curve (ROC) analysis. RESULTS There was a significant negative correlation between stiffness and ADC (r = -0.54, p < 0.0001) of FLLs. Malignant FLLs had significantly higher mean stiffness (7.9kPa vs. 3.1kPa, p < 0.001) and lower mean ADC (129 vs. 200 × 10(-3)mm(2)/s, p < 0.001) than benign FLLs. The sensitivity/specificity/positive predictive value/negative predictive value for differentiating malignant from benign FLLs with MRE (cut-off, >4.54kPa) and DWI (cut-off, <151 × 10(-3)mm(2)/s) were 96.3/95.5/97.5/93.3% (p < 0.001) and 85/81.8/88.3/75% (p < 0.001), respectively. ROC analysis showed significantly higher accuracy for MRE than DWI (0.986 vs. 0.82, p = 0.0016). CONCLUSION MRE is significantly more accurate than DWI for differentiating benign and malignant FLLs. KEY POINTS • MRE is superior to DWI for differentiating benign and malignant focal liver lesions. • Benign lesions with large fibrous components may have higher stiffness with MRE. • Cholangiocarcinomas tend to have higher stiffness than hepatocellular carcinomas. • Hepatocellular adenomas tend to have lower stiffness than focal nodular hyperplasia. • MRE is superior to conventional MRI in differentiating benign and malignant liver lesions.
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Affiliation(s)
- Tiffany P Hennedige
- Department of Diagnostic Imaging, National University Hospital, National University Health System, Singapore, Singapore
| | | | - Fiona P Leung
- Department of Diagnostic Imaging, National University Hospital, National University Health System, Singapore, Singapore.,South West Radiology, Liverpool, NSW, Australia
| | - Lynette Li San Teo
- Department of Diagnostic Imaging, National University Hospital, National University Health System, Singapore, Singapore
| | - Sridhar Iyer
- Department of Surgery, National University Health System, Singapore, Singapore
| | - Gang Wang
- Department of Diagnostic Imaging, National University Hospital, National University Health System, Singapore, Singapore.,University of Calgary, Alberta, Canada
| | - Stephen Chang
- Department of Surgery, National University Health System, Singapore, Singapore
| | | | - Aileen Wee
- Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore
| | - Sudhakar K Venkatesh
- Department of Radiology, Mayo Clinic, 200, First Street SW, Rochester, MN, 55905, USA.
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Duran R, Ronot M, Di Renzo S, Gregoli B, Van Beers BE, Vilgrain V. Is magnetic resonance imaging of hepatic hemangioma any different in liver fibrosis and cirrhosis compared to normal liver. Eur J Radiol. 2015;84:816-822. [PMID: 25703650 DOI: 10.1016/j.ejrad.2015.01.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 12/13/2022]
Abstract
PURPOSE To compare qualitative and quantitative magnetic resonance (MR) imaging characteristics of hepatic hemangiomas in patients with normal, fibrotic and cirrhotic livers. MATERIALS AND METHODS Retrospective, institutional review board approved study (waiver of informed consent). Eighty-nine consecutive patients with 231 hepatic hemangiomas who underwent liver MR imaging for lesion characterization were included. Lesions were classified into three groups according to the patients' liver condition: no underlying liver disease (group 1), fibrosis (group 2) and cirrhosis (group 3). Qualitative and quantitative characteristics (number, size, signal intensities on T1-, T2-, and DW MR images, T2 shine-through effect, enhancement patterns (classical, rapidly filling, delayed filling), and ADC values) were compared. RESULTS There were 160 (69%), 45 (20%), and 26 (11%) hemangiomas in groups 1, 2 and 3, respectively. Lesions were larger in patients with normal liver (group 1 vs. groups 2 and 3; P=.009). No difference was found between the groups on T2-weighted images (fat-suppressed fast spin-echo (P=.82) and single-shot (P=.25)) and in enhancement patterns (P=.56). Mean ADC values of hemangiomas were similar between groups 1, 2 and 3 (2.11±.52×10(-3) mm(2)/s, 2.1±.53×10(-3) mm(2)/s and 2.14±.44×10(-3) mm(2)/s, P=87, respectively). T2 shine-through effect was less frequently observed in cirrhosis (P=.02). CONCLUSION MR imaging characteristics of hepatic hemangioma were similar in patients with normal compared to fibrotic and cirrhotic livers. Smaller lesion size was observed with liver disease and less T2 shine-through effect was seen in hemangiomas developed on cirrhosis, the latter being an important finding to highlight in these patients at risk of developing hepatocellular carcinoma.
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Duran R, Ronot M, Kerbaol A, Van Beers B, Vilgrain V. Hepatic hemangiomas: factors associated with T2 shine-through effect on diffusion-weighted MR sequences. Eur J Radiol 2013; 83:468-78. [PMID: 24364922 DOI: 10.1016/j.ejrad.2013.11.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 11/27/2013] [Indexed: 12/13/2022]
Abstract
PURPOSE To determine the frequency and factors associated with the presence of T2 shine-through effect in hepatic hemangiomas on diffusion-weighted (DW) magnetic resonance (MR) sequences. MATERIALS AND METHODS This retrospective study was approved by institutional review board with waiver of informed consent. One hundred forty-nine consecutive patients with 388 hepatic hemangiomas who underwent a liver MR between January 2010 and November 2011 were included. MR analysis evaluated the lesion characteristics (signal intensities and enhancement patterns (classical, rapidly filling, delayed filling)), the presence of T2 shine-through effect on DW sequences (b values of 0, 150, and 600 s/mm2), and apparent diffusion coefficient (ADC) values. Multivariate analysis was performed to study the factors associated with the T2 shine-through effect. RESULTS T2 shine-through effect was observed in 204/388 (52.6%) of hepatic hemangiomas and in 100 (67.1%) patients. Mean ADC value of hemangiomas with T2 shine-through effect was significantly lower than hemangiomas without (2.0±0.48 vs 2.38±0.45, P<.0001). On multivariate analysis, high signal intensity on fat-suppressed T2-weighted fast spin-echo images, hemangiomas with classical or delayed enhancement, and the ADC of the liver were the only significant factors associated with T2 shine-through effect. CONCLUSION T2 shine-through effect is commonly observed in hepatic hemangiomas and is related to hemangiomas characteristics. Radiologists should be aware of this phenomenon which could lead to misdiagnosis. Its presence should not question the diagnosis of hemangiomas when typical MR findings are found.
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Affiliation(s)
- Rafael Duran
- Centre Hospitalier Universitaire Vaudois and University of Lausanne, Department of Radiology, Lausanne, Switzerland; Assistance-Publique Hôpitaux de Paris, APHP, Hôpital Beaujon, Department of Radiology, Clichy, France.
| | - Maxime Ronot
- Assistance-Publique Hôpitaux de Paris, APHP, Hôpital Beaujon, Department of Radiology, Clichy, France; University Paris Diderot, Sorbonne Paris Cité, INSERM U773, centre de recherche biomédicale Bichat-Beaujon, CRB3, Paris, France.
| | - Anne Kerbaol
- Assistance-Publique Hôpitaux de Paris, APHP, Hôpital Beaujon, Department of Radiology, Clichy, France.
| | - Bernard Van Beers
- Assistance-Publique Hôpitaux de Paris, APHP, Hôpital Beaujon, Department of Radiology, Clichy, France.
| | - Valérie Vilgrain
- Assistance-Publique Hôpitaux de Paris, APHP, Hôpital Beaujon, Department of Radiology, Clichy, France; University Paris Diderot, Sorbonne Paris Cité, INSERM U773, centre de recherche biomédicale Bichat-Beaujon, CRB3, Paris, France.
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