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focal nodular hyperplasia

Norihide Yoneda, Osamu Matsui, Azusa Kitao, Kazuto Kozaka, Satoshi Kobayashi, Motoko Sasaki, Kotaro Yoshida, Dai Inoue, Tetsuya Minami, Toshifumi Gabata
Gadoxetic acid is a contrast agent for magnetic resonance (MR) imaging with hepatocyte-specific properties and is becoming increasingly important in detection and characterization of hepatocellular carcinoma and benign hepatocellular nodules, including focal nodular hyperplasia (FNH), nodular regenerative hyperplasia (NRH), hepatocellular adenoma (HCA), and dysplastic nodule. In these hepatocellular nodules, a positive correlation between the grade of membranous uptake transporter organic anion-transporting polypeptide (OATP) 1B3 expression and signal intensity in the hepatobiliary (HB) phase has been verified...
October 14, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Abdel-Rauf Zeina, Yair Glick
No abstract text is available yet for this article.
November 2016: Annals of Hepatology
Jeong Woo Kim, Chang Hee Lee, Soo Byn Kim, Bit Na Park, Yang Shin Park, Jongmee Lee, Cheol Min Park
PURPOSE: To identify the most reliable imaging features for differentiating hepatocellular carcinoma with paradoxical uptake on the hepatobiliary phase (HCCpara ) from focal nodular hyperplasia (FNH)-like nodules using Gd-EOB-DTPA-enhanced MRI. MATERIALS AND METHODS: This was a retrospective study. Twenty patients with HCCpara and 21 patients with FNH-like nodules were included. The following MRI features were evaluated using 3.0 Tesla unit by two radiologists: signal intensity (SI) on T1-, T2-, and diffusion-weighted imaging (DWI), arterial enhancement pattern, washout appearance on the portal venous phase (PVP) and/or transitional phase (TP), uptake pattern on the hepatobiliary phase (HBP), "T2 scar," "EOB scar," and chemical shift on in- and out-of-phase images...
October 11, 2016: Journal of Magnetic Resonance Imaging: JMRI
Lambros Tselikas, Frederic Pigneur, Marion Roux, Laurence Baranes, Charlotte Costentin, Vincent Roche, Julien Calderaro, Edouard Herin, Alexis Laurent, Elie Zafrani, Daniel Azoulay, Ariane Mallat, Alain Rahmouni, Alain Luciani
PURPOSE: To compare the added values of hepatobiliary phase (HBP) MRI and contrast-enhanced ultrasound (CEUS) in addition to inconclusive extracellular gadolinium-based contrast-enhanced MRI (CE-MRI) to characterize benign hepatocellular tumors (BHT). METHODS: Eighty-three BHT-46 focal nodular hyperplasia (FNH) and 37 hepatocellular adenomas (HCA)-with inconclusive CE-MRI in 54 patients (43 women and 11 men, mean age 42 years old ± 14.8) were retrospectively analyzed...
October 4, 2016: Abdominal Radiology
Govind B Chavhan, Susan Shelmerdine, Kartik Jhaveri, Paul S Babyn
Magnetic resonance (MR) imaging is increasingly being used for comprehensive evaluation of liver diseases in children because of the lack of radiation and better lesion detection and characterization. Liver examination involves routine sequences such as T2-weighted, balanced steady-state free precession, and in-phase and out-of-phase sequences. Dynamic imaging is an essential component of liver examination to characterize focal lesions and involves capturing snapshots of the passage of contrast material in the arterial, portal venous, equilibrium, and sometimes hepatobiliary phases, generally by using T1-weighted three-dimensional gradient-echo sequences...
September 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Hai-Tao Zhang, Xin-Yi Gao, Qin-Sha Xu, Yu-Tang Chen, Yu-Piao Song, Zhen-Wei Yao
OBJECTIVE: To evaluate the characteristics of enhancement of focal nodular hyperplasia (FNH) of the liver by analyzing the dynamic contrast-enhanced multislice computed tomography (MSCT) features and correlating them with pathological findings. PATIENTS AND METHODS: Nine males and 16 females with pathologically confirmed FNH and complete preoperative contrast-enhanced MSCT data were recruited for this study. The imaging features of FNH on the pre- and postcontrast MSCT were analyzed by two experienced radiologists by consensus...
2016: OncoTargets and Therapy
Belle V van Rosmalen, Matthanja Bieze, Marc G H Besselink, Pieter Tanis, Joanne Verheij, Saffire S K S Phoa, Olivier Busch, Thomas M van Gulik
BACKGROUND: Benign liver tumours (e.g., hepatocellular adenoma (HCA), focal nodular hyperplasia (FNH), and haemangioma) are occasionally resected for alleged symptoms, although data on long-term outcomes is lacking. The aim of this cross-sectional study was to assess long-term outcomes of surgical intervention. METHODS: Forty patients with benign tumours (HCA 20, FNH 12, giant haemangioma 4, cysts 4) were included. Patients filled in Validated McGill Pain Questionnaires, preoperatively and after a median of 54 months after resection...
August 20, 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
Julia Shinnick, Carlos R Abramowsky, Nasim Khoshnam, Justine S Broecker, Diana Metry, Andrea C Thomas, Cheri L Curtis, Bahig M Shehata
Leydig cell nodular hyperplasia (LCNH) is a lesion that is less characterized than the familiar Leydig cell tumors. The paracrine effects of these lesions on adjacent gonadal stroma have not been widely documented. We present two cases of precocious puberty in pre-pubertal boys found to have a single LCNH with adjacent focal maturation of the seminiferous tubules. Blood tests showed elevated serum testosterone and dehydroepiandrosterone (DHEAS). Ultrasound revealed unilateral testicular enlargement with irregular echogenicity...
August 23, 2016: Fetal and Pediatric Pathology
Hiroko Naganuma, Hideaki Ishida, Masahiro Ogawa, Yukinobu Watanabe, Daisuke Watanabe, Yoko Ohyama, Takako Watanabe
PURPOSE: Contrast-enhanced ultrasound (CEUS) is a very sensitive diagnostic tool in characterizing liver tumors. It is especially useful in the diagnosis of focal nodular hyperplasia (FNH) of the liver. According to the previous reports, FNH is common in young women, and it is usually diagnosed by MRI. The majority of the previous reports come from European countries, and a very few studies of large series designed to describe the clinical features in Japanese patients have been reported...
August 22, 2016: Journal of Medical Ultrasonics
Susan C Shelmerdine, Derek J Roebuck, Alexander J Towbin, Kieran McHugh
Liver tumours are fortunately rare in children. Benign tumours such as haemangiomas and cystic mesenchymal hamartomas are typically seen in infancy, often before 6 months of age. After that age, malignant hepatic tumours increase in frequency. The differentiation of a malignant from benign lesion on imaging can often negate the need for biopsy. Ultrasound is currently the main screening tool for suspected liver pathology, and is ideally suited for evaluation of hepatic lesions in children due to their generally small size...
2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
Martine Regenboog, Anneloes E Bohte, Inne Somers, Otto M van Delden, Mario Maas, Carla E M Hollak
In Gaucher disease (GD) imaging of liver and spleen is part of routine follow-up of GD patients. Focal lesions in both liver and spleen are frequently reported at radiological examinations. These lesions often represent benign accumulations of Gaucher cells, so-called "gaucheroma", but malignancies, especially hepatocellular carcinoma, are more frequently found in GD as well. We report the imaging characteristics of all focal lesions in liver and spleen in the Dutch GD cohort. Of the 95 GD1 patients, 40% had focal splenic and/or hepatic lesions, associated with more severe GD...
September 2016: Blood Cells, Molecules & Diseases
Linda Calistri, Alessandro Castellani, Benedetta Matteuzzi, Elisa Mazzoni, Silvia Pradella, Stefano Colagrande
OBJECTIVE: The aim of this work was to analyze the value of diffusion-weighted imaging (DWI) in the classification/characterization of focal liver lesions (FLLs). METHODS: Retrospective study, approved by ethical board, of 100 proven FLLs (20 hemangiomas, 20 focal nodular hyperplasia, 20 dysplastic nodules, 20 hepatocellular carcinomas, and 20 metastases) was performed by 1.5-T MR. For each lesion, 2 readers, blinded of medical history, have evaluated 6 sets of images: set A (T1/T2-weighted images), set B (set A + DWI), set C (set B + apparent diffusion coefficient [ADC] map), set D (set A + dynamic and hepatobiliary phases), set E (set D + DWI), set F (set E + ADC map)...
September 2016: Journal of Computer Assisted Tomography
Barbara Cafferata, Marco Pizzi, Francesco D'Amico, Claudia Mescoli, Rita Alaggio
Sclerosing Angiomatoid Nodular Transformation (SANT) of the spleen is a benign vascular lesion with peculiar histological features. The pathogenesis of SANT is still largely unknown and variable etiologies have been proposed, including autoimmune, inflammatory, and/or vascular disorders. The present report describes a unique case of splenic SANT, associated with focal nodular hyperplasia and a sclerosing hemangioma of the liver. The clinic-pathological features of such an unusual case are thoroughly illustrated...
September 2016: Pathology, Research and Practice
Katsutoshi Sugimoto, Fuminori Moriyasu, Hirohito Takeuchi, Mayumi Kojima, Saori Ogawa, Takatomo Sano, Yoshihiro Furuichi, Yoshiyuki Kobayashi, Ikuo Nakamura
OBJECTIVE: To determine the optimal bolus injection rate of ultrasound (US) contrast agent in vascular imaging for focal liver lesions. METHODS: Thirteen patients with 13 focal liver lesions (5 hepatocellular carcinomas (HCCs) with cirrhosis, 4 liver metastases, 2 hemangiomas, 1 intrahepatic cholangiocarcinoma, 1 focal nodular hyperplasia) received two bolus injections of Sonazoid (at 0.5 and 2.0 mL/s) using an automatic power injector. The lesion-to-liver contrast ratio at peak enhancement was quantitatively evaluated...
2016: SpringerPlus
M Giuga, A M De Gaetano, A Guerra, A Infante, R Iezzi, I Spinelli, M Siciliano, A Grieco, G L Rapaccini, A Gasbarrini, M Pompili, L Bonomo
Hepatobiliary-specific contrast agents are now widely used in magnetic resonance imaging (MRI) of liver parenchyma. As extracellular fluid agents, they provide informations regarding lesion vascularity and their use in the hepatobiliary or delayed phase (DPI), and give additional data regarding hepatocyte presence and function. The aim of this article is to review the recent literature about MRI using hepatobiliary-specific contrast agents and to discuss benefits and limits of their clinical applications. Since November 2008, hepatobiliary contrast agents were routinely employed in our Institution for the characterization of equivocal liver lesions detected by other imaging modalities, and for the evaluation of hepatic nodules in liver cirrhosis...
June 2016: European Review for Medical and Pharmacological Sciences
Jesse T Young, Anil N Kurup, Rondell P Graham, Michael S Torbenson, Sudhakar K Venkatesh
PURPOSE: To describe the imaging appearance of myxoid hepatocellular neoplasms (MHNs), including adenomas and carcinomas, a recently described pathologically unique tumor variant. MATERIALS AND METHODS: Single-institution review of pathologically proven MHNs revealed 4 patients with imaging prior to resection. All available cross-sectional imaging was then retrospectively reviewed in consensus using specified descriptive characteristics previously published for hepatocellular adenoma subtypes...
June 22, 2016: Abdominal Radiology
Steven W Warmann, Andrea Schenk, Juergen F Schaefer, Martin Ebinger, Gunnar Blumenstock, Ilias Tsiflikas, Joerg Fuchs
BACKGROUND: In complex malignant pediatric liver tumors there is an ongoing discussion regarding surgical strategy; for example, primary organ transplantation versus extended resection in hepatoblastoma involving 3 or 4 sectors of the liver. We evaluated the possible role of computer-assisted surgery planning in children with complex hepatic tumors. METHODS: Between May 2004 and March 2016, 24 Children with complex liver tumors underwent standard multislice helical CT scan or MRI scan at our institution...
June 1, 2016: Journal of Pediatric Surgery
Wen-Shuo Tian, Man-Xia Lin, Lu-Yao Zhou, Fu-Shun Pan, Guang-Liang Huang, Wei Wang, Ming-De Lu, Xiao-Yan Xie
The goal of the work described here was to evaluate the diagnostic efficacy of 2-D shear wave elastography (2-D SWE) in differentiating malignancy from benign focal liver lesions (FLLs). The maxima, minima, means and the standard deviations of 2-D SWE measurements, expressed in kilopascals (Emax, Emin, Emean, ESD), were obtained for 221 patients with 229 FLLs. Receiver operating characteristic curve analysis was performed to evaluate the diagnostic performance of 2-D SWE. The Mann-Whitney U-test was used to assess inter-group differences...
September 2016: Ultrasound in Medicine & Biology
Henning Reis, Stefanie Bertram, Leona Pott, Ali Canbay, Anja Gallinat, Hideo Andreas Baba
Hepatocellular Carcinoma (HCC) is a lethal cancer worldwide. Recently, the hippo signaling pathway has been implicated in tumorigenesis of HCC and other malignant tumors. Aim of the study was therefore to evaluate the hippo signaling pathway activity and its clinico-pathological associations and crosstalk in different tumor forming hepatocellular lesions (HCC, hepatocellular adenoma (HCA), focal nodular hyperplasia (FNH) and cirrhosis). A tissue micro array (TMA) from paired human tumorous and non-tumorous (NT) tissue samples of HCC (n = 92), HCA (n = 25), FNH (n = 28) and cirrhosis (n = 28; no NT) was constructed...
June 8, 2016: Pathology Oncology Research: POR
Alexander Semaan, Vittorio Branchi, Anna-Lena Marowsky, Martin VON Websky, Patrick Kupczyk, Simon Jonas Enkirch, Guido Kukuk, Edwin Bölke, Burkhard Stoffels, Jörg C Kalff, Nico Schäfer, Philipp Lingohr, Hanno Matthaei
BACKGROUND: Detection of asymptomatic focal liver lesions (FLL) is increasing because of a widespread use of modern radiologic imaging. Most of these lesions are benign, though malignancy often has to be ruled out, which is posing a diagnostic challenge. AIM: To critically evaluate our treatment strategy in the context of recently published American College of Gastroenterology (ACG) guidelines. PATIENTS AND METHODS: The medical records of patients who underwent surgery for asymptomatic, incidentally detected FLL from 2005-2012 were reviewed...
June 2016: Anticancer Research
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