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Hepatic adenoma

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https://www.readbyqxmd.com/read/28058027/complete-spontaneous-regression-of-giant-focal-nodular-hyperplasia-of-the-liver-magnetic-resonance-imaging-evaluation-with-hepatobiliary-contrast-media
#1
Giuseppe Mamone, Settimo Caruso, Kelvin Cortis, Roberto Miraglia
Focal nodular hyperplasia (FNH) of the liver is a benign lesion occurring in 0.6%-3% of the general population that probably reflects a local hyperplastic response of hepatocytes to a vascular abnormality. Most lesions are diagnosed incidentally and the natural history of the disease remains largely unknown. It has been shown that most FNH remain stable, or even regress, over a long follow-up period. We present a patient with FNH of the liver who was followed up for 7 years. A 26-year-old woman with a 5-year history of oral contraceptive use was referred to our hospital in February 2005 for further examination of a liver tumour...
December 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28049244/false-positive-diagnosis-of-hepatocellular-carcinoma-in-liver-resection-patients
#2
Hongeun Lee, Jeong Hee Yoon, Hyeyoung Kim, Nam Joon Yi, Suk Kyun Hong, Kyung Chul Yoon, Hyo Sin Kim, Sung Woo Ahn, Jin Young Choi, Youngrok Choi, Hae Won Lee, Ju Yeon Yi, Kyoung Bun Lee, Kwang Woong Lee, Kyung Suk Suh
The diagnosis of hepatocellular carcinoma (HCC) is based on imaging studies particularly in high-risk patients without histologic confirmation. This study evaluated the prevalence and characteristics of false-positively diagnosed HCC in a liver resection cohort for HCC. A retrospective review was performed of 837 liver resection cases for clinically diagnosed HCC between 2005 and 2010 at our institute. High-risk patients with tumors > 1 cm with one or two image findings consistent with HCC and tumors < 1 cm with two or more image findings consistent with HCC with persistently increased serum alpha-fetoprotein (AFP) levels above the normal range with underlying inhibited hepatitis activity underwent liver resection...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28024920/hepatic-adenomas-in-adolescents-and-young-women-with-endometriosis-treated-with-norethindrone-acetate
#3
P C Brady, S A Missmer, M R Laufer
BACKGROUND: Endometriosis-ectopic implantation of endometrial-like tissue-affects 10% of female adolescents and adults. First-line treatment includes progesterone-only (such as norethindrone acetate, NET-A) or combined estrogen/progestin oral contraceptive pills. Estrogen-containing contraceptives confer increased risk of hepatic adenomas, while the association with NET-A is very rarely reported. CASE: Three adolescents with Stage I-II endometriosis managed with NET-A (up to 15 mg/day for 28-78 months) were diagnosed with hepatic adenomas at ages 17-22 years...
December 23, 2016: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/27988517/malignant-transformation-of-hepatocellular-adenoma
#4
Wing Yee Kwok, Satoru Hagiwara, Naoshi Nishida, Tomohiro Watanabe, Toshiharu Sakurai, Hiroshi Ida, Yasunori Minami, Masahiro Takita, Tomohiro Minami, Mina Iwanishi, Hirokazu Chishina, Masashi Kono, Kazuomi Ueshima, Yoriaki Komeda, Tadaaki Arizumi, Eisuke Enoki, Takuya Nakai, Tsutomu Kumabe, Osamu Nakashima, Fukuo Kondo, Masatoshi Kudo
The patient was a 20-year-old male in whom a hepatic hypervascular mass accompanied by intratumoral hemorrhage was detected on examination for epigastric pain. Based on the enlargement of the mass and diagnostic imaging, hepatocellular adenoma (HCA) was suspected and hepatectomy was performed. The lesion was diagnosed as malignant transformation of β-catenin-activated HCA. There are only few reports of cases with malignant transformation of HCA in Japan; it is necessary to accumulate cases to investigate it...
December 17, 2016: Oncology
https://www.readbyqxmd.com/read/27986170/imaging-of-hepatic-focal-nodular-hyperplasia-pictorial-review-and-diagnostic-strategy
#5
Marco Dioguardi Burgio, Maxime Ronot, Giuseppe Salvaggio, Valérie Vilgrain, Giuseppe Brancatelli
Focal nodular hyperplasia (FNH) is the second most common benign solid liver lesion after hemangioma, occurring more frequently in young women. The prime differential diagnoses include hepatocellular adenoma, hepatocellular carcinoma, and hypervascular metastasis. As the management of FNH is typically conservative, imaging plays a key role in diagnostic pathway, and misdiagnosis may have a major clinical effect. In this article, we describe the ultrasound, computed tomography, and magnetic resonance imaging features of FNH, underlining the importance of typical radiological features that allow a specific noninvasive diagnosis...
December 2016: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/27956811/spontaneous-rupture-of-hepatic-metastasis-from-a-thymoma-a-case-report
#6
Ho Jae Kim, Yong Eun Park, Min Seo Ki, Se Ju Lee, Seung Hun Beom, Dai Hoon Han, Young Nyun Park, Jun Yong Park
Bleeding resulting from spontaneous rupture of the liver is an infrequent but potentially life threatening complication that may be associated with an underlying liver disease. A hepatocellular carcinoma or hepatic adenoma is frequently reported is such cases. However, hemoperitoneum resulting from a hepatic metastatic thymoma is extremely rare. Here, we present a case of a 62-year-old man with hypovolemic shock induced by ruptured hepatic metastasis from a thymoma. At the first hospital admission, the patient had a 45-mm anterior mediastinal mass that was eventually diagnosed as a type A thymoma...
November 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27931050/improved-detection-of-right-colon-adenomas-with-additional-retroflexion-following-two-forward-view-examinations-a-prospective-study
#7
Hyun Seok Lee, Seong Woo Jeon, Hye Yoon Park, Seong Jae Yeo
Background and study aims Colonoscopy in the right colon is less effective than in the left colon in screening for colorectal cancer. The aim of this study was to prospectively evaluate the diagnostic value of retroflexion in the right colon. Patients and methods A total of 1020 patients undergoing screening or surveillance colonoscopy were enrolled. After the first cecal intubation, the scope was withdrawn from the cecum to the hepatic flexure in the standard forward view and all identified polyps were resected...
December 8, 2016: Endoscopy
https://www.readbyqxmd.com/read/27903597/impact-of-organic-cation-transporters-oct-slc22a-on-differential-diagnosis-of-intrahepatic-lesions
#8
Michele Visentin, Belle V van Rosmalen, Christian Hiller, Matthanja Bieze, Lia Hofstetter, Joanne Verheij, Gerd A Kullak-Ublick, Hermann Koepsell, Saffire Sks Phoa, Ikumi Tamai, Roelof J Bennink, Thomas M van Gulik, Bruno Stieger
Positron emission tomography (PET) using the cationic compound [(18)F]fluoromethylcholine (FCH) enhances the sensitivity for non-invasive classification of hepatic tumours due to peculiar patterns of accumulation. The underlying transporters are not known. We aim to identify the carriers mediating uptake of FCH in liver and to correlate their expression pattern with PET intrahepatic signal distribution to clarify the role of membrane transporters in FCH accumulation. FCH transport was characterized in cells overexpressing organic cation transporters (OCTs)...
November 30, 2016: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/27900094/malignant-transformation-of-hepatocellular-adenoma-with-bone-marrow-metaplasia-arising-in-glycogen-storage-disease-type-i-a-case-report
#9
Tomohiro Iguchi, Motoyuki Yamagata, Takashi Sonoda, Kimihiko Yanagita, Tetsuhiro Fukahori, Eiji Tsujita, Shinichi Aishima, Yoshinao Oda, Yoshihiko Maehara
Malignant transformation of hepatocellular adenoma (HA) is relatively rare and has been reported to be associated with dysregulation of the β-catenin pathway. The presence of bone marrow metaplasia in HA is an uncommon histological characteristic. The current report presents the case of a 46-year-old woman with glycogen storage disease type I (von Gierke's disease) who underwent resection of hepatocellular carcinoma (HCC) arising in a HA with associated bone marrow metaplasia producing three series of hematopoietic cells...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27859748/use-of-serum-micrornas-as-biomarker-for-hepatobiliary-diseases-in-dogs
#10
K Dirksen, T Verzijl, G C Grinwis, R P Favier, L C Penning, I A Burgener, L J van der Laan, H Fieten, B Spee
BACKGROUND: Current biochemical indicators cannot discriminate between parenchymal, biliary, vascular, and neoplastic hepatobiliary diseases. MicroRNAs are promising new biomarkers for hepatobiliary disease in humans and dogs. OBJECTIVE: To measure serum concentrations of an established group of microRNAs in dogs and to investigate their concentrations in various types of hepatobiliary diseases. ANIMALS: Forty-six client-owned dogs with an established diagnosis of hepatobiliary disease and stored serum samples and eleven client-owned healthy control Labrador Retrievers...
November 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27853109/a-crucial-role-of-constitutive-androstane-receptor-car-in-liver-tumor-development-by-imazalil-in-mice
#11
Kei Tamura, Kaoru Inoue, Miwa Takahashi, Saori Matsuo, Yukio Kodama, Midori Yoshida
To clarify the major pathway of liver tumor development induced by imazalil (IMA), an imidazole fungicide, male constitutive androstane receptor (CAR)-knockout (CARKO) and wild-type (WT) mice were treated with IMA at 500 ppm in the diet up to 27 weeks after initiation by diethylnitrosamine. After 27 weeks of treatment, neither altered foci nor adenomas were significantly increased in CARKO mice, whereas both eosinophilic altered foci and adenomas were increased in WT mice. After 4 or 13 weeks of IMA treatment, liver hypertrophy was observed at the tumor-inducible dose without differences among genotypes or durations...
2016: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/27822585/laparoscopic-hepatectomy-for-segments-i-iv-v-and-viii
#12
Hongyu Li, Yonggang Wei, Bo Li, Bing Peng
BACKGROUND: According to difficulty scoring system [1], laparoscopic hepatectomy (LH) for caudate lobe and middle segments should be considered as the most difficult case. We here report the first case of LH for segments I, IV, V and VIII in China. METHODS: The patient was a 31-year-old man without hepatitis history. Preoperative MRI revealed a 5.0 cm × 5.2 cm mass located in the paracaval portion. Preoperative liver function tests and tumor markers were normal...
November 7, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27812395/progression-of-hepatic-adenoma-to-carcinoma-in-the-setting-of-hepatoportal-sclerosis-in-hiv-patient-case-report-and-review-of-the-literature
#13
M I Montenovo, F G Jalikis, M Yeh, J D Reyes
We report a case of hepatic adenoma progression to carcinoma in the setting of hepatoportal sclerosis in an HIV+ patient and provide a review of the scarce literature regarding hepatoportal sclerosis in HIV patients. We describe the clinical presentation, diagnostic workup, and management. This is the first case report in the literature of progression of hepatic adenoma to carcinoma in hepatoportal sclerosis in an HIV patient. This case also highlights the broad differential diagnosis that should always be included in the study of any liver disease in this patient population, including the performance of invasive and aggressive tests to arrive at the final diagnosis...
2016: Case Reports in Hepatology
https://www.readbyqxmd.com/read/27783314/space-occupying-lesions-in-the-liver
#14
REVIEW
Manigandan Subramanyam Thyagarajan, Khalid Sharif
Space occupying liver lesions usually present with abdominal pain or abnormal physical findings, such as a palpable abdominal mass or distention. Liver lesions identified in children include benign and malignant neoplasms, inflammatory masses, cysts and metastatic lesions. Two-thirds of liver lesions in children are malignant. Hepatoblastoma accounts for two-thirds of malignant liver tumors in children. Benign lesions of the liver in children include vascular lesions, hamartomas, adenomas, and focal nodular hyperplasia...
October 25, 2016: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/27780309/incidental-inflammatory-adenoma-with-%C3%AE-catenin-activation-in-the-setting-of-paediatric-nash
#15
S Oliveira, A K Samba, A J Towbin, A Gupta, J I Geller, J D Nathan, R Kohli
: Hepatocellular adenomas (HCA) are benign tumours with potential for malignant transformation with no recommendations regarding management in the paediatric population. We report a case of an inflammatory adenoma with β-catenin activated pathway in an obese, paediatric patient with nonalcoholic steatohepatitis (NASH). CASE REPORT: An 11-year-old female presented with a microlobulated liver lesion measuring >5 cm in magnetic resonance imaging (MRI) with inflammatory adenoma with β-catenin activated pathology arising in a background of NASH, nonalcoholic fatty liver disease (NAFLD) activity score 5/8...
October 25, 2016: Pediatric Obesity
https://www.readbyqxmd.com/read/27762491/resolution-of-non-alcoholic-steatohepatitis-after-growth-hormone-replacement-in-a-pediatric-liver-transplant-patient-with-panhypopituitarism
#16
Thomas Gilliland, Sylvie Dufour, Gerald I Shulman, Kitt Falk Petersen, Sukru H Emre
NAFLD is a common condition linked to obesity, type 2 diabetes, and metabolic syndrome. Simple hepatic steatosis is a risk factor for inflammatory reactions in the liver (NASH), which may lead to cirrhosis. While the mechanism is unclear, NAFLD and NASH are associated with panhypopituitarism, which in the pediatric population often results from craniopharyngioma or pituitary adenoma and the sequelae of treatment, causing hypothyroidism, adrenal insufficiency, hypogonadotropic hypogonadism, and GH deficiency...
December 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27755934/case-235-hepatic-adenomatosis-due-to-inflammatory-adenomas
#17
Gavin Low, Harini Dharmana, Samantha Saravana-Bawan, Safwat Girgis
History An asymptomatic 33-year-old woman was referred to the Hepatology Department in 2013 for work-up of indeterminate multifocal liver masses. These lesions were discovered incidentally at multiphase contrast material-enhanced multidetector computed tomography (CT) performed in 2004 to investigate right lower quadrant pain. Imaging surveillance at sporadic intervals revealed slow progressive growth of the lesions over time; however, the number of lesions remained constant. There was no history of cancer, nor were there predisposing factors for chronic liver disease or cirrhosis...
November 2016: Radiology
https://www.readbyqxmd.com/read/27725202/elevated-%C3%AE-np63%C3%AE-levels-facilitate-epidermal-and-biliary-oncogenic-transformation
#18
Michael Devos, Barbara Gilbert, Geertrui Denecker, Kirsten Leurs, Conor Mc Guire, Kelly Lemeire, Tino Hochepied, Marnik Vuylsteke, Jo Lambert, Caroline Van Den Broecke, Louis Libbrecht, Jody Haigh, Geert Berx, Saskia Lippens, Peter Vandenabeele, Wim Declercq
Unlike its family member p53, TP63 is rarely mutated in human cancer. However, ΔNp63α protein levels are often elevated in tumors of epithelial origin, such as squamous cell carcinoma and cholangiocarcinoma. To study the oncogenic properties of ΔNp63α in vivo, we generated transgenic mice overexpressing ΔNp63α from the Rosa26 locus promoter controlled by keratin 5-Cre. We found that these mice spontaneously develop epidermal cysts and ectopic ΔNp63α expression in the bile duct epithelium that leads to dilatation of the intrahepatic biliary ducts, to hepatic cyst formation and bile duct adenoma...
October 7, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27692588/use-of-a-machine-learning-method-for-predicting-highly-cited-articles-within-general-radiology-journals
#19
Andrew B Rosenkrantz, Ankur M Doshi, Luke A Ginocchio, Yindalon Aphinyanaphongs
RATIONALE AND OBJECTIVES: This study aimed to assess the performance of a text classification machine-learning model in predicting highly cited articles within the recent radiological literature and to identify the model's most influential article features. MATERIALS AND METHODS: We downloaded from PubMed the title, abstract, and medical subject heading terms for 10,065 articles published in 25 general radiology journals in 2012 and 2013. Three machine-learning models were applied to predict the top 10% of included articles in terms of the number of citations to the article in 2014 (reflecting the 2-year time window in conventional impact factor calculations)...
December 2016: Academic Radiology
https://www.readbyqxmd.com/read/27664318/methyl-isobutyl-ketone-induced-hepatocellular-carcinogenesis-in-b6c3f1-mice-a-constitutive-androstane-receptor-car-mediated-mode-of-action
#20
B J Hughes, J Thomas, A M Lynch, S J Borghoff, S Green, T Mensing, S S Sarang, M J LeBaron
In a National Toxicology Program (NTP) chronic inhalation study with methyl isobutyl ketone (MIBK), increases in hepatocellular adenomas and hepatocellular adenomas and carcinomas (combined) were observed in male and female B6C3F1 mice at 1800 ppm. A DNA reactive Mode-of-Action (MOA) for this liver tumor response is not supported by the evidence as MIBK and its major metabolites lack genotoxicity in both in vitro and in vivo studies. Constitutive androstane receptor (CAR) nuclear receptor-mediated activation has been hypothesized as the MOA for MIBK-induced mouse liver tumorigenesis...
November 2016: Regulatory Toxicology and Pharmacology: RTP
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