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https://www.readbyqxmd.com/read/28813771/hepatic-adenoma-a-case-report
#1
Hasan H Turaihi, Thavam C Thambi-Pillai
Although liver lesions in the young population are relatively rare, clinicians can benefit from being familiar with a subset of common benign liver lesions which include hepatic adenoma, hepatic hemangioma, and focal nodular hyperplasia. This a case report of a 25-year-old Jehovah's Witness female on chronic oral contraception for polycystic ovarian syndrome who presented with progressive right upper quadrant abdominal pain. Ultrasound and MRI findings were consistent with hepatic adenoma. A description of her clinical work up followed by a brief description of the surgical intervention is discussed...
March 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28809681/a-prototype-therapy-system-for-transcutaneous-application-of-boiling-histotripsy
#2
Adam D Maxwell, Petr V Yuldashev, Wayne Kreider, Tatiana D Khokhlova, George R Schade, Timothy L Hall, Oleg A Sapozhnikov, Michael R Bailey, Vera A Khokhlova
Boiling histotripsy is a method of focused ultrasound surgery that noninvasively applies millisecond-length pulses with high-amplitude shock fronts to generate liquefied lesions in tissue. Such a technique requires unique outputs compared to a focused ultrasound thermal therapy apparatus, particularly to achieve high in situ pressure levels through intervening tissue. This article describes the design and characterization of a system capable of producing the necessary pressure to transcutaneously administer boiling histotripsy therapy through clinically relevant overlying tissue paths using pulses with duration up to 10 ms...
August 14, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28781196/clinicopathological-and-immunohistochemical-analysis-of-epithelial-lined-true-cysts-of-the-adrenal-gland-with-proposal-of-a-new-histogenetic-categorization
#3
Łukasz Koperski, Paweł Pihowicz, Benedykt Szczepankiewicz, Łukasz Fus, Agata Cyran, Magdalena Bogdańska, Barbara Górnicka
Epithelial- lined (true) cysts are rare lesions and until now the only information we had about their histogenesis was based on the analysis of a few cases. We retrospectively reviewed 8 cases of cysts with a true epithelial lining (confirmed immunohistochemically). The pathological findings and immunohistochemical analysis of the epithelial linings allowed for categorization of the cysts into 3 groups. Five cysts had pure mesothelial lining, which was flattened to cuboidal, and demonstrated a positive reaction for mesothelial markers (eg...
July 21, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28780813/-delayed-effect-of-liver-injury-and-metabolism-of-dimethylformamide-after-high-exposures-in-rats
#4
Z J Wu, M Y Guan, M Zheng, M Zhang, W J Zhao, L J Shao, Y C Zhai, Y L Zhu, J Cheng
Objective: To investigate the delayed effect of liver injury and metabolism of dimethylformamide (DMF) after high exposures in rats. Methods: A total of 12 rats were randomly divided into four groups and 3 rats were in each group. Rats in 1d DMF+2 d delayed group were dosed for 1 day and rested for 2 days, and sacrificed at the 4th day. Rats in 3 d DMF group were dosed for 3 days and sacrificed at the 4th day. Rats in 3 d DMF+3 d delayed group were dosed for 3 days and rested for 3 days, and sacrificed at the 7th day...
June 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28767567/a-4-and-a-half-years-old-boy-with-mesenchymal-hamartomas-in-the-left-lateral-lobe-of-the-liver-a-case-report-and-literature-review
#5
Wei Liao, Binhao Zhang, Wei Zhang, Lin Chen, Wanguang Zhang, Bixiang Zhang, Xiaoping Chen
RATIONALE: Mesenchymal hamartomas of the liver is one type of rare liver tumor. PATIENT CONCERNS: Mesenchymal hamartomas of the liver (MHL) is rarely reported in the left lobe of the liver in children who are more than 2 years old. It is difficult to distinguish it from liver lesions such as hepatoblastoma in children, and hepatocellular carcinoma and focal nodular hyperplasia in adults. In addition, it is hard to correctly diagnose it without pathological examination...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28752981/-ultrasonographic-features-of-hepatic-epithelioid-hemangioendothelioma-on-b-mode-and-contrast-enhanced-ultrasound
#6
Wen-Wu Ling, Yan Luo, Ling Lin, Lin Ma, Ting-Ting Qiu, Lu-Lu Yang, Qiang Lu
OBJECTIVE: To investigate the ultrasonographic features of hepatic epithelioid hemangioendothelioma (HEHE) on B-mode and contrast-enhanced ultrasound (CEUS). METHODS: From January 2012 to September 2016, 17 patients with surgery or biopsy confirmed HEHE were retrospectively analyzed for their clinical history, ultrasonographic data of B-mode ultrasound and CEUS characteristics. RESULTS: The mean age of the 17 patients was (42.88±13.95) yr...
July 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28747272/efficacy-and-safety-of-radiofrequency-ablation-for-focal-hepatic-lesions-adjacent-to-gallbladder-reconfiguration-of-the-ablation-zone-through-probe-relocation-and-ablation-time-reduction
#7
In Young Choi, Pyo Nyun Kim, Sung Gu Lee, Hyung Jin Won, Yong Moon Shin
PURPOSE: To evaluate the safety and efficacy of radiofrequency (RF) ablation for treatment of focal hepatic lesions adjacent to the gallbladder with electrode relocation and ablation time reduction. MATERIALS AND METHODS: Thirty-nine patients who underwent RF ablation for focal hepatic lesions adjacent to the gallbladder (≤ 10 mm) were evaluated retrospectively from January 2011 to December 2014 (30 men and 9 women; age range, 51-85 y; mean age, 65 y). Of 36 patients with hepatocellular carcinoma, 3 had a second treatment for recurrence (mean tumor size, 15 mm ± 6)...
July 23, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28743375/a-model-based-prediction-of-the-probability-of%C3%A2-hepatocellular%C3%A2-adenoma-and-focal-nodular-hyperplasia%C3%A2-based%C3%A2-on-characteristics-on-contrast-enhanced%C3%A2-ultrasound
#8
Pavel Taimr, Mirelle E E Bröker, Roy S Dwarkasing, Bettina E Hansen, Robert J de Knegt, Robert A De Man, Jan N M IJzermans
Contrast-enhanced ultrasound (CEUS) is an emerging imaging technique that is increasingly used to diagnose liver lesions. It is of the utmost importance to differentiate between the two most common solid focal liver lesions (i.e., hepatocellular adenoma [HCA] and focal nodular hyperplasia [FNH]), because their management and follow-up differ greatly. The main objective of this study was to determine how frequently the specific CEUS features of HCA and FNH are visible on CEUS and to define their predictive value for discrimination between HCA and FNH...
July 22, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28739764/mr-guided-percutaneous-biopsy-of-focal-hepatic-dome-lesions-with-free-hand-combined-with-mr-fluoroscopy-using-1-0-t-open-high-field-scanner
#9
Ligang Wang, Ming Liu, Liming Liu, Yanbo Zheng, Yujun Xu, Xiangmeng He, Peipei Li, Chengli Li
AIM: To prospectively estimate the safety, feasibility and accuracy of 1.0T open-magnetic resonance (MR)-guided percutaneous biopsy in free-hand of focal lesions located in the hepatic dome. MATERIALS AND METHODS: All percutaneous MR-guided biopsies of the lesions were performed at the Shandong Medical Imaging Research Institute. Thirty-six patients with focal liver lesions located in the hepatic dome measuring 6-36 mm in the maximum diameter were included in this study...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28736430/a-case-of-type-1-autoimmune-pancreatitis-aip-a-form-of-igg4-related-disease-igg4-rd
#10
Mounira El Euch, Souha Hddad, Madiha Mahfoudhi, Hela Maktouf, Fethi Ben Hamida, Fatima Jaziri, Khaoula Ben Abdelghani, Sami Turki, Taïeb Ben Abdallah
BACKGROUND Type 1 autoimmune pancreatitis (AIP), also known as lymphoplasmacytic sclerosing pancreatitis (LPSP), is a rare cause of chronic pancreatitis, characterized by a fibro-inflammatory process. However, patients with AIP may have a good response to corticosteroid therapy. We describe a Tunisian patient with AIP that was confirmed to be an IgG4-related disease (IgG4-RD). CASE REPORT We describe a case of a 70-year-old man who was admitted to hospital for obstructive jaundice and abdominal pain. Serum liver function tests were abnormal and upper abdominal computed tomography (CT) imaging showed diffuse pancreatic swelling and strictures of the main pancreatic duct without any focal lesion...
July 24, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28726119/a-cost-effectiveness-analysis-of-the-diagnostic-strategies-for-differentiating-focal-nodular-hyperplasia-from-hepatocellular-adenoma
#11
Chong Hyun Suh, Kyung Won Kim, Seong Ho Park, Sangjin Shin, Jeonghoon Ahn, Junhee Pyo, Atul B Shinagare, Katherine M Krajewski, Nikhil H Ramaiya
OBJECTIVES: We evaluated the cost-effectiveness of a gadoxetic acid-enhanced MRI (EOB-MRI) strategy compared with conventional MRI strategy and biopsy to differentiate focal nodular hyperplasia (FNH) from hepatocellular adenoma (HCA). METHODS: A decision tree model was constructed to compare the cost-effectiveness of EOB-MRI, conventional MRI with extracellular contrast agents, and biopsy as the initial diagnostic modality in patients with incidentally detected focal liver lesions suspected of being FNH or HCA...
July 19, 2017: European Radiology
https://www.readbyqxmd.com/read/28723742/liver-transplantation-using-the-otherwise-discarded-partial-liver-resection-graft-with-hepatic-benign-tumor-analysis-of-a-preliminary-experience-on-15-consecutive-cases
#12
Guoqiang Li, Xiaoxin Mu, Xinli Huang, Xiaofeng Qian, Jianjie Qin, Zhongming Tan, Wenjie Zhang, Xiaoliang Xu, Shanbai Tan, Zhijun Zhu, Wei Li, Xuan Wang, Xuehao Wang, Beicheng Sun
RATIONALE: The shortage of available donor organs limits the development of liver transplantation. This case-serial study presents a novel way to expand the donor pool by using the other-wise discarded partial liver resection graft with hepatic benign tumor. PATIENT CONCERNS: From 2012 to 2016, 15 patients with hepatic lesions were admitted to our hospital. 12 patients suffered from right epigastric discomfort and 3 patients worried about uncertain diagnosis. INTERVENTIONS: Regular hepatic lobectomy was performed for all patients and after back-table management the resected partial liver grafts were used for patients with end-stage liver disease for liver transplantation...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722597/occult-amoebic-liver-abscess-as-cause-of-extensive-inferior-vena-cava-and-hepatic-vein-thrombosis
#13
Leslie Martin, Nishigandha Burute, Ehsan Haider, Pablo E Serrano, Timothy O'Shea, Deborah Siegal
The most common extraintestinal complication of Entamoeba histolytica is amoebic liver abscess (ALA). Hepatic vein and inferior vena cava (IVC) thrombosis are rare but well-documented complications of ALA, typically attributed to mechanical compression and inflammation associated with a large abscess. We present a case of a previously healthy 43-year-old Canadian man presenting with constitutional symptoms and right upper quadrant abdominal pain. He was found to have thrombophlebitis of the IVC, accessory right hepatic vein, and bilateral iliac veins...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718042/contrast-enhanced-ultrasound-for-focal-liver-lesions-how-accurate-is-it
#14
Richard G Barr
With the recent FDA approval for characterization of focal liver lesions (FLL) in both pediatric and adult patients using Lumason (sulfur hexafluoride microbubbles), increased use of ultrasound contrast for routine clinical use is expected. This agent has been available for many years in Europe and Asia, and a large body of literature is available regarding the sensitivity and specificity of this agent. In addition, a few studies have directly compared CEUS to CECT and CEMRI for the characterization of focal liver lesions...
July 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28709465/subclinical-focal-cholangitis-mimicking-liver-metastasis-in-asymptomatic-patients-with-history-of-pancreatic-ductal-adenocarcinoma-and-biliary-tree-intervention
#15
Natally Horvat, Edmund M Godfrey, Timothy J Sadler, Jaclyn F Hechtman, Laura H Tang, Carlie S Sigel, Serena Monti, Lorenzo Mannelli
BACKGROUND: Cholangitis is an inflammatory process of the biliary tract with a wide range of clinical manifestations and it is not always considered in the differential diagnosis in asymptomatic patients. To the best of our knowledge there is no previous report in the English literature of focal cholangitis manifesting exclusively as liver parenchymal changes mimicking liver metastasis in asymptomatic patients with pancreatic ductal adenocarcinoma (PDAC) and history of manipulation of the biliary tree...
July 14, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28705557/automatic-identification-of-the-optimal-reference-frame-for-segmentation-and-quantification-of-focal-liver-lesions-in-contrast-enhanced-ultrasound
#16
Spyridon Bakas, Dimitrios Makris, Gordon J A Hunter, Cheng Fang, Paul S Sidhu, Katerina Chatzimichail
Post-examination interpretation of contrast-enhanced ultrasound (CEUS) cineloops of focal liver lesions (FLLs) requires offline manual assessment by experienced radiologists, which is time-consuming and generates subjective results. Such assessment usually starts by manually identifying a reference frame, where FLL and healthy parenchyma are well-distinguished. This study proposes an automatic computational method to objectively identify the optimal reference frame for distinguishing and hence delineating an FLL, by statistically analyzing the temporal intensity variation across the spatially discretized ultrasonographic image...
July 10, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28700167/-relevance-of-contrast-ultrasound-with-microbubbles-in-vascular-medecine
#17
Andreas Erdmann, Barbara Ney, Adriano Alatri, Luca Calanca, Lucia Mazzolai
Application of ultrasound contrast media has become a standard in diagnostic imaging in cardiology and in the characterization of focal lesions in multiple organs, especially of the liver. In the past years there was a growing body of evidence for their usefulness in vascular medicine. The development of contrast media, microbubbles with a stabilizing envelope and filled with gaz, small enough to pass through pulmonary capillaries made real-time imaging of organ perfusion possible. Ultrasound contrast media are rapidly eliminated by exhalation and can safely be administered to patients with renal failure...
December 7, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28699910/quantitative-evaluation-of-gd-eob-dtpa-uptake-in-focal-liver-lesions-by-using-t1-mapping-differences-between-hepatocellular-carcinoma-hepatic-focal-nodular-hyperplasia-and-cavernous-hemangioma
#18
Zhenpeng Peng, Chang Li, Tao Chan, Huasong Cai, Yanji Luo, Zhi Dong, Zi-Ping Li, Shi-Ting Feng
OBJECTIVES: To investigate the difference of T1 relaxation time on Gd-EOB-DTPA-enhanced MRI in hepatocellular carcinoma (HCC), hepatic focal nodular hyperplasia (FNH) and cavernous hemangioma of liver (CHL), and to quantitatively evaluate the uptake of Gd-EOB-DTPA in these three focal liver lesions (FLLs). RESULTS: The T1P of CHL was significantly higher than those of HCC and FNH (P < 0.05). Reduction of T1 relaxation time on hepatobiliary phase could be observed in all three types of lesions...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28694862/primary-hepatic-marginal-zone-lymphoma-in-a-patient-with-chronic-hepatitis-c
#19
George S Gherlan, Razvan Stoia, Mihaly Enyedi, Camelia Dobrea, Petre I Calistru
Extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) is a low-grade malignant lymphoma that appears frequently in the stomach, but other sites can also be involved: the intestinal tract, lungs, head, neck, skin, thyroid, breasts and liver. Recently, epidemiological evidences support the idea that there is an association between hepatitis C and B-cell non-Hodgkin lymphomas (that include MALT as a subtype). Primary non-Hodgkin lymphomas confi ned only to the liver are very rare (only 0...
September 2016: Mædica
https://www.readbyqxmd.com/read/28681404/integration-of-deployable-fluid-lenses-and-reflectors-with-endoluminal-therapeutic-ultrasound-applicators-preliminary-investigations-of-enhanced-penetration-depth-and-focal-gain
#20
Matthew S Adams, Vasant A Salgaonkar, Serena Scott, Graham Sommer, Chris J Diederich
PURPOSE: Catheter-based ultrasound applicators can generate thermal ablation of tissues adjacent to body lumens, but have limited focusing and penetration capabilities due to the small profile of integrated transducers required for the applicator to traverse anatomical passages. This study investigates a design for an endoluminal or laparoscopic ultrasound applicator with deployable acoustic reflector and fluid lens components, which can be expanded after device delivery to increase the effective acoustic aperture and allow for deeper and dynamically adjustable target depths...
July 6, 2017: Medical Physics
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