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Adrenal adenomas

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https://www.readbyqxmd.com/read/29046752/an-exceedingly-rare-adrenal-collision-tumor-adrenal-adenoma-metastatic-breast-cancer-myelolipoma
#1
Dongyan Liu, Sahayini A Kumar
Adrenal collision tumors (ACTs), in which distinct tumors coexist without histological intermingling in the same adrenal gland, are rare and their actual prevalence is unknown. ACTs commonly consist of adrenal cortical adenoma, myelolipoma, or metastatic malignant tumor. We report a 58-year-old woman with a past history of breast cancer, who presented with a 1 month history of fevers, chills, and abdominal fullness. The physical examination and the laboratory data including endocrine studies were unremarkable...
October 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/29042975/comparison-of-dwibs-t2-image-fusion-and-pet-ct-for-the-diagnosis-of-cancer-in-the-abdominal-cavity
#2
Minoru Tomizawa, Fuminobu Shinozaki, Yoshitaka Uchida, Katsuhiro Uchiyama, Satomi Tanaka, Takafumi Sunaoshi, Daisuke Kano, Eriko Sugiyama, Misaki Shite, Ryouta Haga, Yoshiya Fukamizu, Toshiyuki Fujita, Satoshi Kagayama, Rumiko Hasegawa, Yoshinori Shirai, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
Fusion images of diffusion-weighted whole-body imaging with background body signal suppression and T2-weighted image (DWIBS/T2) demonstrate a strong signal for malignancies, with a high contrast against the surrounding tissues, and enable anatomical analysis. In the present study, DWIBS/T2 was compared with (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) for diagnosing cancer in the abdomen. Patient records, including imaging results of examination conducted between November 2012 and May 2014, were analyzed retrospectively...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29030398/on-the-effect-of-hyperaldosteronism-inducing-mutations-in-na-k-pumps
#3
Dylan J Meyer, Craig Gatto, Pablo Artigas
Primary aldosteronism, a condition in which too much aldosterone is produced and that leads to hypertension, is often initiated by an aldosterone-producing adenoma within the zona glomerulosa of the adrenal cortex. Somatic mutations of ATP1A1, encoding the Na/K pump α1 subunit, have been found in these adenomas. It has been proposed that a passive inward current transported by several of these mutant pumps is a "gain-of-function" activity that produces membrane depolarization and concomitant increases in aldosterone production...
October 13, 2017: Journal of General Physiology
https://www.readbyqxmd.com/read/29028646/advances-in-understanding-the-molecular-underpinnings-of-adrenocortical-tumors
#4
Norman G Nicolson, Jianling Man, Tobias Carling
PURPOSE OF REVIEW: Adrenocortical tumors are divided into benign adenomas and malignant carcinomas. The former is relatively common and carries a favorable prognosis, whereas the latter is rare and frequently presents at an advanced stage, with poor outcomes. Advances in next-generation sequencing, genome analysis, and bioinformatics have allowed for high-throughput molecular characterization of adrenal tumorigenesis. RECENT FINDINGS: Although recent genomic, epigenomic, and transcriptomic studies in large tumor cohorts have confirmed the central roles of aberrant Wnt/ß-catenin signaling, constitutive protein kinase A pathway activation, cell cycle dysregulation, and ion channelopathies in adrenal tumorigenesis, these studies also revealed novel signature events underlying malignant differentiation of adrenocortical carcinomas...
October 11, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/29026974/pheochromocytoma-as-a-frequent-false-positive-in-adrenal-washout-ct-a-systematic-review-and-meta-analysis
#5
Sungmin Woo, Chong Hyun Suh, Sang Youn Kim, Jeong Yeon Cho, Seung Hyup Kim
OBJECTIVE: To evaluate the proportion of pheochromocytomas meeting the criteria for adenoma on adrenal washout CT and the diagnostic performance of adrenal washout CT for differentiating adenoma from pheochromocytoma. METHODS: MEDLINE and EMBASE were searched to 28 March 2017. We included studies that used adrenal washout CT for characterisation of pheochromocytomas. Two independent reviewers assessed the methodological quality using Quality Assessment of Diagnostic Accuracy Studies-2...
October 12, 2017: European Radiology
https://www.readbyqxmd.com/read/29026467/chromogranin-a-as-a-biochemical-marker-for-neuroendocrine-tumors-a-single-center-experience-at-royal-hospital-oman
#6
Elham S Al-Risi, Fatma S Al-Essry, Waad-Allah S Mula-Abed
OBJECTIVES: To evaluate the significance of serum chromogranin A (CgA) status in patients with and without different neuroendocrine tumors (NETs) by conducting a retrospective assessment of the diagnostic utility and limitations of CgA as a biomarker for NETs in a tertiary care hospital in Oman. METHODS: We conducted a retrospective analysis of CgA requests referred to the Clinical Biochemistry Laboratory, Royal Hospital, Oman over a 24-month period (April 2012 to March 2014)...
September 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/29019745/imaging-of-nonmalignant-adrenal-lesions-in-children
#7
Kiran M Sargar, Geetika Khanna, Rebecca Hulett Bowling
The adrenal glands in children can be affected by a variety of benign lesions. The diagnosis of adrenal lesions can be challenging, but assessment of morphologic changes in correlation with the clinical presentation can lead to an accurate diagnosis. These lesions can be classified by their cause: congenital (eg, discoid adrenal gland, horseshoe adrenal gland, and epithelial cysts), vascular and/or traumatic (eg, adrenal hemorrhage), infectious (eg, granulomatous diseases), enzyme deficiency disorders (eg, congenital adrenal hyperplasia [CAH] and Wolman disease), benign neoplasms (eg, pheochromocytomas, ganglioneuromas, adrenal adenomas, and myelolipomas), and adrenal mass mimics (eg, extralobar sequestration and extramedullary hematopoiesis)...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28994759/a-novel-method-super-selective-adrenal-venous-sampling
#8
Kohzoh Makita, Koshiro Nishimoto, Kanako Kiriyama-Kitamoto, Shigehiro Karashima, Tsugio Seki, Masanori Yasuda, Seishi Matsui, Masao Omura, Tetsuo Nishikawa
Primary aldosteronism (PA) and subclinical Cushing's syndrome (SCS) are conditions in which the adrenal glands autonomously produce excessive amounts of aldosterone and cortisol, respectively. The conventional adrenal venous sampling (cAVS) method collects blood samples from both adrenal central veins and is useful for identifying the laterality of excess hormone production in a unilateral lesion(s), as documented in PA cases. In cAVS, plasma cortisol concentrations (PCCs) are used to normalize plasma aldosterone concentrations (PACs)...
September 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28990974/iodine-and-fat-quantification-for-differentiation-of-adrenal-gland-adenomas-from-metastases-using-third-generation-dual-source-dual-energy-computed-tomography
#9
Simon S Martin, Sebastian Weidinger, Rouben Czwikla, Benjamin Kaltenbach, Moritz H Albrecht, Lukas Lenga, Thomas J Vogl, Julian L Wichmann
OBJECTIVES: The aim of this study was to investigate the value of third-generation dual-source dual-energy computed tomography (DECT) iodine and fat quantification in differentiating adrenal gland adenomas from metastases. MATERIALS AND METHODS: Sixty-two patients (38 men and 24 women; mean age, 69.1 years) underwent clinically indicated DECT of the abdomen on a third-generation dual-source scanner. Examinations were retrospectively included due to detected adrenal masses...
October 3, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28989884/diagnosis-of-adrenocortical-tumors-by-reticulin-algorithm
#10
Daphne Fonseca, Sudha S Murthy, K Ravindranath Tagore, B Vishal Rao, Subramanyeshwar Rao Thamminedi, K V V N Raju, Rakesh Sharma, Sundaram Challa
AIMS: To apply reticulin algorithm (RA) to the diagnosis of adrenocortical tumors on adrenalectomy specimens and compare its efficacy to the modified Weiss criteria or Lin-Weiss-Bisceglia (LWB) criteria for oncocytic variant. MATERIALS AND METHODS: Adrenocortical tumors (ACTs) diagnosed on resected specimens including the variants during January 2010-June 2016 were retrieved from the pathology records. The demographic and clinical data were obtained from medical records...
September 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28977799/luteinizing-hormone-and-gata4-action-in-the-adrenocortical-tumorigenesis-of-gonadectomized-female-mice
#11
Milena Doroszko, Marcin Chrusciel, Joanna Stelmaszewska, Tomasz Slezak, Adolfo Rivero-Muller, Artur Padzik, Slawomir Anisimowicz, Slawomir Wolczynski, Ilpo Huhtaniemi, Jorma Toppari, Nafis A Rahman
BACKGROUND/AIMS: Physiological role of luteinizing hormone (LH) and its receptor (LHCGR) in adrenal remains unknown. In inhibin-α/Simian Virus 40 T antigen (SV40Tag) (inhα/Tag) mice, gonadectomy-induced (OVX) elevated LH triggers the growth of transcription factor GATA4 (GATA4)-positive adrenocortical tumors in a hyperplasia-adenoma-adenocarcinoma sequence. METHODS: We investigated the role of LHCGR in tumor induction, by crossbreeding inhα/Tag with Lhcgr knockout (LuRKO) mice...
October 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28973103/genetic-causes-of-functional-adrenocortical-adenomas
#12
Maria-Christina Zennaro, Sheerazed Boulkroun, Fabio Fernandes-Rosa
Aldosterone and cortisol, the main mineralocorticoid and glucocorticoid hormones in humans, are produced in the adrenal cortex, which is composed of three concentric zone with specific functional characteristics. Adrenocortical adenomas (ACA) may lead to the autonomous secretion of aldosterone responsible for primary aldosteronism, the most frequent form of secondary arterial hypertension. In the case of cortisol production, ACA lead to overt or subclinical Cushing syndrome. Genetic analysis driven by next generation sequencing technology has enabled the discovery, during the last seven years, of the genetic causes of a large subset of ACA...
August 2, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28972640/nationellt-v%C3%A3-rdprogram-f%C3%A3-r-adrenala-incidentalom-programmet-har-harmoniserats-med-europeiska-riktlinjer-%C3%A2-ger-f%C3%A3-renklad-handl%C3%A3-ggning-av-patienter
#13
Andreas Muth, Lilian Hammarstedt, Mikael Hellström, Ulf Nyman, Anders Sundin, Hans Wahrenberg, Bo Wängberg
Swedish guidelines for the management of adrenal incidentalomas  Adrenal incidentalomas are seen in about five percent of abdominal CT examinations, and in most cases represent non-hormone-producing adrenocortical adenomas, but hormone-producing or malignant lesions occur. Revised Swedish guidelines for the evaluation and management of adrenal incidentalomas based on recently published European guidelines are presented. The importance of a thorough radiological, clinical and biochemical initial evaluation is emphasized...
September 29, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28957852/the-subtyping-of-primary-aldosteronism-by-adrenal-vein-sampling-sequential-blood-sampling-causes-factitious-lateralization
#14
Giacomo Rossitto, Michele Battistel, Giulio Barbiero, Valeria Bisogni, Giuseppe Maiolino, Miotto Diego, Teresa M Seccia, Gian Paolo Rossi
BACKGROUND: The pulsatile secretion of adrenocortical hormones and a stress reaction occurring when starting adrenal vein sampling (AVS) can affect the selectivity and also the assessment of lateralization when sequential blood sampling is used. We therefore tested the hypothesis that a simulated sequential blood sampling could decrease the diagnostic accuracy of lateralization index for identification of aldosterone-producing adenoma (APA), as compared with bilaterally simultaneous AVS...
September 27, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28956362/ctnnb1-mutation-in-aldosterone-producing-adenoma
#15
REVIEW
Jian Jhong Wang, Kang Yung Peng, Vin Cent Wu, Fen Yu Tseng, Kwan Dun Wu
Discoveries of somatic mutations permit the recognition of subtypes of aldosterone-producing adenomas (APAs) with distinct clinical presentations and pathological features. Catenin β1 (CTNNB1) mutation in APAs has been recently described and discussed in the literature. However, significant knowledge gaps still remain regarding the prevalence, clinical characteristics, pathophysiology, and outcomes in APA patients harboring CTNNB1 mutations. Aberrant activation of the Wnt/β-catenin signaling pathway will further modulate tumorigenesis...
September 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28956262/daily-salivary-cortisol-and-cortisone-rhythm-in-patients-with-adrenal-incidentaloma
#16
Filippo Ceccato, Mattia Barbot, Nora Albiger, Giorgia Antonelli, Marialuisa Zilio, Marco Todeschini, Daniela Regazzo, Mario Plebani, Carmelo Lacognata, Maurizio Iacobone, Franco Mantero, Marco Boscaro, Carla Scaroni
BACKGROUND AND AIM: Impaired cortisol rhythm is a characteristic feature of Cushing's Syndrome, nevertheless late night salivary cortisol (LNSC) is not suitable to detect subclinical hypercortisolism in patients with adrenal incidentaloma (AI). We studied daily salivary cortisol (F) and cortisone (E) rhythm in patients with AI. MATERIALS AND METHODS: Six saliva samples were collected from awakening to night in 106 patients with AI and 40 controls. F and E were measured with LC-MS/MS and daily F exposure was calculated with the area under the curve (AUC)...
September 27, 2017: Endocrine
https://www.readbyqxmd.com/read/28943972/small-non-coding-rna-abundance-in-adrenocortical-carcinoma-a-footprint-of-a-rare-cancer
#17
Srinivas V Koduru, Ashley N Leberfinger, Dino J Ravnic
BACKGROUND: Adrenocortical carcinoma (ACC) is a relatively rare, but aggressive type of cancer, which affects both children and adults. OBJECTIVE: Small non-coding RNAs (sncRNAs) play important roles and may serve as biomarkers for disease diagnosis, prognosis and treatment. METHODS: In our study, we sought to identify sncRNAs associated with malignant adrenal tumors. We obtained publicly available, small RNA sequencing data derived from 45 ACC and 30 benign tumors arising from the cortex of the adrenal gland, adrenocortical adenomas (ACA), and compared their sncRNA expression profiles...
2017: Journal of Genomics
https://www.readbyqxmd.com/read/28932767/patient-specific-workup-of-adrenal-incidentalomas
#18
REVIEW
Romy R de Haan, Johannes B R Visser, Ewoud Pons, Richard A Feelders, Uzay Kaymak, M G Myriam Hunink, Jacob J Visser
PURPOSE: : To develop a clinical prediction model to predict a clinically relevant adrenal disorder for patients with adrenal incidentaloma. MATERIALS AND METHODS: : This retrospective study is approved by the institutional review board, with waiver of informed consent. Natural language processing is used for filtering of adrenal incidentaloma cases in all thoracic and abdominal CT reports from 2010 till 2012. A total of 635 patients are identified. Stepwise logistic regression is used to construct the prediction model...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28931750/adrenal-gipr-expression-and-chromosome-19q13-microduplications-in-gip-dependent-cushing-s-syndrome
#19
Anne-Lise Lecoq, Constantine A Stratakis, Say Viengchareun, Ronan Chaligné, Lucie Tosca, Vianney Deméocq, Mirella Hage, Annabel Berthon, Fabio R Faucz, Patrick Hanna, Hadrien-Gaël Boyer, Nicolas Servant, Sylvie Salenave, Gérard Tachdjian, Clovis Adam, Vanessa Benhamo, Eric Clauser, Anne Guiochon-Mantel, Jacques Young, Marc Lombès, Isabelle Bourdeau, Dominique Maiter, Antoine Tabarin, Jérôme Bertherat, Hervé Lefebvre, Wouter de Herder, Estelle Louiset, André Lacroix, Philippe Chanson, Jérôme Bouligand, Peter Kamenický
GIP-dependent Cushing's syndrome is caused by ectopic expression of glucose-dependent insulinotropic polypeptide receptor (GIPR) in cortisol-producing adrenal adenomas or in bilateral macronodular adrenal hyperplasias. Molecular mechanisms leading to ectopic GIPR expression in adrenal tissue are not known. Here we performed molecular analyses on adrenocortical adenomas and bilateral macronodular adrenal hyperplasias obtained from 14 patients with GIP-dependent adrenal Cushing's syndrome and one patient with GIP-dependent aldosteronism...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28931176/the-role-of-cortisol-acth-ratio-for-screening-of-subclinical-hypercortisolism-in-patients-with-adrenal-incidentalomas
#20
Lele Li, Guoqing Yang, Jingtao Dou, Weijun Gu, Zhaohui Lv, Juming Lu, Yiming Mu
Introduction The cortisol/ACTH ratio was supposed to be helpful in the screening of subclinical hypercortisolism (SHC) in the published literatures. This study assessed the cortisol/ACTH ratio in patients with adrenal incidentaloma (AI) confirmed to have SHC and investigated its role for screening SCS in patients with AI. Methods This descriptive retrospective study included 183 patients with AIs [45 with SHC and 138 with non-functional adenoma (NFA)]. Cortisol and ACTH levels were measured at 8:00, 16:00, and 0:00, and the cortisol/ACTH ratio was calculated...
September 20, 2017: Experimental and Clinical Endocrinology & Diabetes
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