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Hepatocellular adenoma

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https://www.readbyqxmd.com/read/29424599/screening-of-biomarkers-for-liver-adenoma-in-low-dose-rate-gamma-ray-irradiated-mice
#1
Takashi Sugihara, Satoshi Tanaka, Ignacia Braga-Tanaka, Hayato Murano, Masako Nakamura-Murano, Jun-Ichiro Komura
PURPOSE: Chronic low-dose-rate (20 mGy/d) gamma-irradiation increases the incidence of hepatocellular adenomas (HCA) in female B6C3F1 mice. The purpose of this study is to identify potential serum biomarkers for these HCAs by a new approach. MATERIAL AND METHODS: Microarray analysis were performed to compare the gene expression profiles of HCAs from mice exposed to low-dose-rate gamma rays with those of normal livers from non-irradiated mice. From the differentially expressed genes, those for possibly secretory proteins were selected...
February 9, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29417268/retrospective-single-arm-cohort-study-of-patients-with-hepatocellular-adenomas-treated-with-percutaneous-thermal-ablation
#2
Oleg Mironov, Arash Jaberi, Robert Beecroft, John R Kachura
PURPOSE: To assess the safety and efficacy of percutaneous thermal ablation for the treatment of hepatocellular adenomas. MATERIALS AND METHODS: This is an ethics board-approved, single-arm, retrospective, cohort study of patients with pathologically proven hepatocellular adenomas treated with percutaneous thermal ablation at a tertiary referral center from 1999 to 2016. Demographic, procedural, and outcome data were collected and summarized with appropriate measures of central tendency and dispersion...
February 7, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29402895/visualization-and-quantification-of-dynamic-stat3-homodimerization-in-living-cells-using-homofluoppi
#3
Yusuke Okada, Taku Watanabe, Toru Shoji, Kyoko Taguchi, Naohisa Ogo, Akira Asai
Dimerization in signal transduction is a dynamically regulated process and a key regulatory mechanism. Signal transducer and activator of transcription 3 (STAT3) dimerizes after tyrosine phosphorylation upon cytokine stimulation. Because only the STAT3 dimer possesses the trans-activation activity, dimerization is an indispensable process for cytokine signaling. Here we report the detection of dynamic STAT3 dimerization in living cells using the homoFluoppi system. This method allowed us to validate the presence of an intact Src homology 2 domain and STAT3 Tyr705 phosphorylation, which facilitate puncta formation and homodimerization...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29399175/effects-of-wnt-1-blockade-in-den-induced-hepatocellular-adenomas-of-mice
#4
Argyrios Sklavos, Theofilos Poutahidis, Alexander Giakoustidis, Kali Makedou, Katerina Angelopoulou, Alexander Hardas, Paola Andreani, Argyro Zacharioudaki, George Saridis, Thomas Goulopoulos, Kalliopi Tsarea, Maria Karamperi, Vassilios Papadopoulos, Vassilios Papanikolaou, Apostolos Papalois, Stavros Iliadis, Satvinder Mudan, Daniel Azoulay, Dimitrios Giakoustidis
Recent evidence has suggested that downregulation of the Wnt/β-catenin signaling pathway may contribute to the development and growth of HCC. Consequently, elements of this pathway have begun to emerge as potential targets for improving outcomes of anti-HCC. Thus, the present study sought to examine the effects of Wnt-1 blockade using the classical diethylnitrosamine (DEN)-induced chemical carcinogenesis mouse model of HCC. The depletion of Wnt-1 using neutralizing antisera was done for ten consecutive days at the age of 9 months and mice were examined for the following 20 days...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29381980/circulating-d-dimer-level-correlates-with-disease-characteristics-in-hepatoblastoma-patients
#5
BinBin Zhang, GongBao Liu, XiangQi Liu, Shan Zheng, Kuiran Dong, Rui Dong
OBJECTIVES: Hepatoblastoma (HB) is the most common pediatric liver malignancy, typically affecting children within the first 4 years of life. However, only a few validated blood biomarkers are used in clinical evaluation. The current study explored the clinical application and significance of D-dimer levels in patients with HB. METHOD: Forty-four patients with HB were included in this retrospective study. D-dimer and plasma fibrinogen levels were examined, and their correlation with other clinical features was analyzed...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29350068/primary-liver-cancers-part-1-histopathology-differential-diagnoses-and-risk-stratification
#6
Kun Jiang, Sameer Al-Diffhala, Barbara A Centeno
Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) are the 2 most common primary malignant liver tumors, with hepatocellular and bile ductular differentiation, respectively. This article reviews the key histopathological findings of these 2 primary liver cancers and includes a review of the role of ancillary testing for differential diagnosis, risk stratification according to the American Joint Committee on Cancer (AJCC) staging recommendation, and a review of precancerous lesions. A literature review was conducted to identify articles with information relevant to precancerous precursors, current histopathological classification, ancillary testing, and risk stratification of primary malignant liver tumors...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29339950/beta-catenin-staining-of-hepatocellular-adenomas
#7
Monica T Garcia-Buitrago
No abstract text is available yet for this article.
December 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29334905/efficacy-comparison-of-multi-phase-ct-and-hepatotropic-contrast-enhanced-mri-in-the-differential-diagnosis-of-focal-nodular-hyperplasia-a-prospective-cohort-study
#8
Tomasz K Nowicki, Karolina Markiet, Ewa Izycka-Swieszewska, Katarzyna Dziadziuszko, Michal Studniarek, Edyta Szurowska
BACKGROUND: Different clinical behaviour influences the importance of differentiating focal nodular hyperplasia (FNH) from other focal liver lesions (FLLs). The aim of this study was to compare the efficacy of contrast-enhanced CT and MRI in the diagnosis of FNH. METHODS: 157 patients with equivocal FLLs detected in ultrasonography subsequently underwent multi-phase CT and MRI with the use of hepatotropic contrast agent (Gd-BOPTA) in a 1.5 T scanner. Examinations were evaluated by three independent readers...
January 15, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29303066/comparison-of-single-port-versus-standard-multiport-left-lateral-liver-sectionectomy
#9
Benjamin Struecker, Philipp Haber, Robert Öllinger, Marcus Bahra, Andreas Pascher, Johann Pratschke, Moritz Schmelzle
It remains unclear if single incision laparoscopic liver surgery is superior to standard multiport resections and in what regard patients might benefit from this approach. We retrospectively analyzed the course of all patients undergoing laparoscopic left lateral sectionectomy at our center between 2009 and 2017. In total, 11 single incision and 31 multiport left lateral sectionectomies were performed at our center between July 2009 and May 2017. Six patients were excluded due to multivisceral resections. Indications included adenoma (n = 7 vs n = 2), focal nodular hyperplasia (n = 4 vs n = 3), hepatocellular carcinoma (n = 4 vs n = 4), colorectal liver metastasis (n = 4 vs n = 0), noncolorectal metastasis (n = 2 vs n = 1), hemangioma (n = 3 vs n = 0), abscess (n = 1 vs n = 0), and cysts (n = 1 vs n = 0)...
January 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/29282384/hepatocyte-nuclear-factor-1%C3%AE-mutated-hepatocellular-adenomas-an-atypical-presentation
#10
Camila Maria Neves Sousa, Patricia Maria Miranda Gadelha, Rafaella de Sousa Cartaxo, George Washington Holanda Pedrosa, Rodrigo Schuler Honorio, José Milton de Castro Lima, Gustavo Rêgo Coelho, Clovis Rêgo Coelho
Hepatocellular adenomas (HCAs) are rare benign monoclonal hepatic tumors that commonly occur in females (3-4 per 100,000 women) due to the use of oral contraceptives, its primary risk factor. Recently, HCAs have been classified into 4 distinct subtypes according to genotypic and phenotypic characteristics and clinical features: inflammatory HCA (40-50%), which are hypervascular with marked peliosis and a tendency to bleed; hepatocyte nuclear factor 1α (HNF1A)-mutated HCA (H-HCA, 30-40%) that are diffusely steatotic and rarely undergo malignant transformation; β-catenin activated HCA (10-15%), which frequently undergo malignant transformation and may seem hepatocellular carcinoma on imaging; and unclassified HCA (10-25%)...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29281780/hepatocellular-carcinoma-arising-in-a-huge-hepatocellular-adenoma-with-bone-marrow-metaplasia
#11
Hyo Jeong Kang, Hui Jeong Jeong, So-Woon Kim, Eunsil Yu, Young-Joo Lee, So Yeon Kim, Jihun Kim
Hepatocellular adenoma (HCA) is the most common type of benign liver tumor, and its major complication is malignant transformation to hepatocellular carcinoma (HCC). Here, we report a case of HCC arising in HCA with bone marrow metaplasia in a 24-year-old Korean woman who presented with abdominal discomfort. A huge liver mass was found on abdominal ultrasonography. She underwent surgical hepatic resection, and the resected specimen was entirely involved by a 20 cm sized tumor. Histological review revealed a well differentiated HCC arising from inflammatory HCA with β-catenin nuclear positivity and bone marrow metaplasia that contained hematopoietic cells...
December 27, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/29230554/correction-to-differentiating-focal-nodular-hyperplasia-from-hepatocellular-adenoma-is-hepatobiliary-phase-mri-hbp-mri-using-linear-gadolinium-chelates-always-useful
#12
Marion Roux, Frederic Pigneur, Laurence Baranes, Julien Calderaro, Mélanie Chiaradia, Thomas Decaens, Sandrine Kastahian, Anaïs Charles-Nelson, Lambros Tselikas, Charlotte Costentin, Alexis Laurent, Daniel Azoulay, Ariane Mallat, Alain Rahmouni, Alain Luciani
The original version of this article unfortunately contained a mistake. There was an error in the last sentence of the summary and the last sentence of the discussion. It should read as "On HBP, all FNH appeared hyper- or iso-intense compared to adjacent liver while close to 97% of HCA appeared hypointense".
December 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29209117/application-of-superb-microvascular-imaging-in-focal-liver-lesions
#13
Meng-Na He, Ke Lv, Yu-Xin Jiang, Tian-An Jiang
AIM: To explore the ability of superb microvascular imaging (SMI) in differential diagnosis of focal liver lesions (FLLs) and to compare SMI morphology findings to those of color Doppler ultrasound and enhanced imaging. METHODS: Twenty-four patients with 31 FLLs were included in our study, with diagnoses of hemangioma (HE) (n = 17), hepatocellular carcinoma (HCC) (n = 5), metastatic lesions (n = 5), primary hepatic lymphoma (n = 1), focal nodular hyperplasia (FNH) (n = 2), and adenoma (n = 1)...
November 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29197930/the-ppar%C3%AE-dependent-rodent-liver-tumor-response-is-not-relevant-to-humans-addressing-misconceptions
#14
REVIEW
J Christopher Corton, Jeffrey M Peters, James E Klaunig
A number of industrial chemicals and therapeutic agents cause liver tumors in rats and mice by activating the nuclear receptor peroxisome proliferator-activated receptor α (PPARα). The molecular and cellular events by which PPARα activators induce rodent hepatocarcinogenesis have been extensively studied elucidating a number of consistent mechanistic changes linked to the increased incidence of liver neoplasms. The weight of evidence relevant to the hypothesized mode of action (MOA) for PPARα activator-induced rodent hepatocarcinogenesis is summarized here...
December 2, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29167952/growth-of-focal-nodular-hyperplasia-is-not-a-reason-for-surgical-intervention-but-patients-should-be-referred-to-a-tertiary-referral-centre
#15
Mirelle E E Bröker, Anne J Klompenhouwer, Marcia P Gaspersz, Annick M E Alleleyn, Roy S Dwarkasing, Indra C Pieters, Robert A de Man, Jan N M IJzermans
BACKGROUND: When a liver lesion diagnosed as focal nodular hyperplasia (FNH) increases in size, it may cause doubt about the initial diagnosis. In many cases, additional investigations will follow to exclude hepatocellular adenoma or malignancy. This retrospective cohort study addresses the implications of growth of FNH for clinical management. METHODS: We included patients diagnosed with FNH based on ≥2 imaging modalities between 2002 and 2015. Characteristics of patients with growing FNH with sequential imaging in a 6-month interval were compared to non-growing FNH...
November 22, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29167944/contrast-enhanced-ultrasound-of-benign-liver-lesions
#16
Jessica G Zarzour, Kristin K Porter, Hisham Tchelepi, Michelle L Robbin
Liver lesions are often incidentally detected on ultrasound examination and may be incompletely characterized, requiring further imaging. Contrast-enhanced ultrasound (CEUS) was recently approved by the Food and Drug Administration in the United States for liver lesion characterization. CEUS has the ability to characterize focal liver lesions and has been shown to be superior to color Doppler and power Doppler ultrasound in the detection of tumor vascularity. Differentiating benign from malignant liver lesions is essential to characterizing liver lesions...
November 22, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29146062/three-cases-of-adrenocortical-tumors-mistaken-for-hepatocellular-carcinomas-diagnostic-pitfalls-and-differential-diagnosis
#17
Won Young Park, Hyung Il Seo, Kyung Un Choi, Ahrong Kim, Young Keum Kim, So Jeong Lee, Chang Hun Lee, Gi Yeong Huh, Do Youn Park
Adrenocortical adenomas and carcinomas in other parenchyma are extremely rare, with few cases reported and because of the rarity of these tumors, they occasionally cause problems during diagnosis. Adrenal cortical neoplasms in liver parenchyma can be present in 3 forms, including direct invasion or adhesion to liver parenchyma, tumors arising in adrenohepatic fusion tissue or in ectopic adrenal gland tissue. We report 3 cases of adrenal cortical tumors that were misdiagnosed as hepatocellular carcinoma in the preoperative state...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29142168/background-data-on-nod-shi-scid-il-2r%C3%AE-null-mice-nog-mice
#18
Kenichiro Kasahara, Yachiyo Fukunaga, Saori Igura, Rie Andoh, Tsubasa Saito, Isamu Suzuki, Hiroyuki Kanemitsu, Daisuke Suzuki, Ken Goto, Daichi Nakamura, Masahiro Mochizuki, Masahiko Yasuda, Ryo Inoue, Kazutoshi Tamura, Mariko Nagatani
To obtain background data of NOD/Shi-scid IL-2Rγ(null) (NOG) mice, severely immunedeficient mice, a total of 120 animals were examined at 7, 26 and 52 weeks-old (20 mice/sex/group). The survival rate at 52 weeks-old was 95% (19/20) in both sexes. Clinically, circling behavior in one direction along the cage wall was observed in males after 8 weeks and females after 47 weeks-old, and hunchback position was found in males after 32 weeks-old. Hematologically, lymphocyte count markedly decreased at all ages, while white blood cell count increased in several mice at 52 weeks-old...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29127141/copper-deposition-in-focal-nodular-hyperplasia-and-inflammatory-hepatocellular-adenoma
#19
Vishal S Chandan, Sejal S Shah, Taofic Mounajjed, Michael S Torbenson, Tsung-Teh Wu
AIMS: To examine copper deposition in focal nodular hyperplasia (FNH) and inflammatory hepatocellular adenoma (IHA) and to determine if it can play a role in their differentiation. METHODS: 28 FNHs and 19 IHAs from surgical resections showing typical morphological and immunohistochemical features were stained with rhodanine to evaluate for copper deposition. Histological features such as nodularity, fibrous bands, ductular proliferation, steatosis, ballooned hepatocytes and lymphocytic inflammation were also scored...
November 10, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29118993/cellular-characteristics-of-keratin-19-positive-canine-hepatocellular-tumours-explain-its-aggressive-behaviour
#20
Renee G van Sprundel, Ted Sgam van den Ingh, Baukje A Schotanus, Monique E van Wolferen, Louis C Penning, Jan Rothuizen, Bart Spee
The expression of the hepatic progenitor cell marker keratin 19 (K19) in canine hepatocellular carcinomas is linked with a poor prognosis. To better understand this aggressive behaviour, K19-positive hepatocellular carcinomas (n=5) and K19-negative hepatocellular adenomas (n=6) were immunohistochemically stained for proteins involved in malignant tumour development. The K19-positive carcinomas showed marked positivity for platelet-derived growth factor receptor alpha polypeptide (PDGFRα), laminin, integrin beta-1/CD29, B-cell-specific Moloney murine leukaemia virus Integration site 1, glypican-3 (GPC-3) and prominin-1/CD133, in contrast with K19-negative hepatocellular adenomas...
2017: Veterinary Record Open
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