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Adrenal adenomas

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https://www.readbyqxmd.com/read/28644176/conn-syndrome-presenting-as-central-retinal-vein-occlusion
#1
Alp Atik, Dennis Wilson, Rohan W Essex
PURPOSE: To describe a case of central retinal vein occlusion in a young patient presenting with symptomatic malignant hypertension because of Conn syndrome. METHODS: Single interventional case report. RESULTS: A 44-year-old man presented with a 1-day history of headache and vision loss in his right eye on a background of malignant hypertension. He was diagnosed with right central retinal vein occlusion. Further investigation of his malignant hypertension revealed Conn syndrome because of an aldosterone-secreting adenoma in the left adrenal gland...
June 20, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28641336/suppression-of-forkhead-box-protein-o1-foxo1-transcription-factor-may-promote-adrenocortical-tumorigenesis
#2
Adam Stenman, Timothy Murtha, Reju Korah, Tobias Carling
Despite recent comprehensive genetic analyses, molecular evidence for a pathophysiological continuum linking benign adrenocortical adenoma (ACA) and highly aggressive adrenocortical carcinoma (ACC) is still elusive. Using human tumor samples and the established ACC cell line SW-13, this study investigated potential regulatory roles for FOXO transcription factors, in modulating adrenocortical tumorigenesis. Adrenocortical tumor specimens (20 ACAs, 10 ACCs, and 9 normal adrenal tissue samples) obtained from 30 patients were analyzed for ubiquitously expressed FOXO transcription factors, FOXO1 and FOXO3 using qRT-PCR and immunohistochemistry...
June 22, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28639924/cushing-syndrome-diagnostic-workup-and-imaging-features-with-clinical-and-pathologic-correlation
#3
Nicolaus A Wagner-Bartak, Ali Baiomy, Mouhammed Amir Habra, Shalini V Mukhi, Ajaykumar C Morani, Brinda R Korivi, Steven G Waguespack, Khaled M Elsayes
OBJECTIVE: Cushing syndrome (CS) is a constellation of clinical signs and symptoms resulting from chronic exposure to excess cortisol, either exogenous or endogenous. Exogenous CS is most commonly caused by administration of glucocorticoids. Endogenous CS is subdivided into two types: adrenocorticotropic hormone (ACTH) dependent and ACTH independent. CONCLUSION: Cushing disease, which is caused by a pituitary adenoma, is the most common cause of ACTH-dependent CS for which pituitary MRI can be diagnostic, with bilateral inferior petrosal sinus sampling useful in equivocal cases...
July 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28604945/adrenal-tumour-bigger-than-5-cm-what-could-it-be-an-analysis-of-139-cases
#4
Andrzej Cichocki, Radoslaw Samsel, Lucyna Papierska, Katarzyna Roszkowska-Purska, Karolina Nowak, Zbigniew Jodkiewicz, Anna Kasperlik-Załuska
INTRODUCTION: There is an increasing number of adrenal being tumours discovered incidentally during imaging examinations performed for many different indications. Radiological findings suggesting adrenal pathology may be caused by true adrenal tumours or by other retroperitoneal masses. Generally, the larger the tumour, the higher the possibility of adrenal cancer. MATERIAL AND METHODS: Analysis of our data - 139 operations performed over 11 years (2004-2014) in patients with tumours in the adrenal area larger than 5 cm...
June 12, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28604387/macrolides-selectively-inhibit-mutant-kcnj5-potassium-channels-that-cause-aldosterone-producing-adenoma
#5
Ute I Scholl, Laura Abriola, Chengbiao Zhang, Esther N Reimer, Mark Plummer, Barbara I Kazmierczak, Junhui Zhang, Denton Hoyer, Jane S Merkel, Wenhui Wang, Richard P Lifton
Aldosterone-producing adenomas (APAs) are benign tumors of the adrenal gland that constitutively produce the salt-retaining steroid hormone aldosterone and cause millions of cases of severe hypertension worldwide. Either of 2 somatic mutations in the potassium channel KCNJ5 (G151R and L168R, hereafter referred to as KCNJ5MUT) in adrenocortical cells account for half of APAs worldwide. These mutations alter channel selectivity to allow abnormal Na+ conductance, resulting in membrane depolarization, calcium influx, aldosterone production, and cell proliferation...
June 12, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28596421/higher-glucocorticoid-replacement-doses-are-associated-with-increased-mortality-in-patients-with-pituitary-adenoma
#6
Casper Hammarstrand, Oskar Ragnarsson, Tobias Hallén, Eva Andersson, Thomas Skoglund, Anna G Nilsson, Gudmundur Johannsson, Daniel S Olsson
OBJECTIVE: Patients with secondary adrenal insufficiency (AI) have an excess mortality. The objective was to investigate the impact of the daily glucocorticoid replacement dose on mortality in patients with hypopituitarism due to non-functioning pituitary adenoma (NFPA). METHOD: Patients with NFPA were followed between years 1997- 2014 and cross-referenced with the National Swedish Death Register. Standardized mortality ratio (SMR) was calculated with the general population as reference and Cox-regression was used to analyse the mortality...
June 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28585681/glucose-metabolism-disorders-in-patients-with-non-functioning-adrenal-adenomas-single-centre-experience
#7
Katarzyna Krzyżewska, Ewa Niemczuk, Bartosz Jakub Myśliwiec, Roman Junik
INTRODUCTION: The presence of glucose metabolism disorders and their possible correlation with degree of cortisol secretion were evaluated in patients with non-functioning adrenal incidentalomas (NFAIs). MATERIAL AND METHODS: The study group consisted of 131 patients with hormonally inactive adrenal incidentalomas. In each patient, besides hormonal and radiological evaluation, was assessed for fasting glucose and insulin concentrations, and the oral glucose tolerance test (OGTT) was performed in all participants without previous history of glucose disturbances...
June 6, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28584016/aldosterone-producing-adenomas-histopathology-genotype-correlation-and-identification-of-a-novel-cacna1d-mutation
#8
Geok Chin Tan, Giulia Negro, Alexandra Pinggera, Nur Maya Sabrina Tizen Laim, Isa Mohamed Rose, Jiri Ceral, Ales Ryska, Long Kha Chin, Nor Azmi Kamaruddin, Norfilza Mohd Mokhtar, A Rahman A Jamal, Norlela Sukor, Miroslav Solar, Joerg Striessnig, Morris Jonathan Brown, Elena Aisha Azizan
Mutations in KCNJ5, ATP1A1, ATP2B3, CACNA1D, and CTNNB1 are thought to cause the excessive autonomous aldosterone secretion of aldosterone-producing adenomas (APAs). The histopathology of KCNJ5 mutant APAs, the most common and largest, has been thoroughly investigated and shown to have a zona fasciculata-like composition. This study aims to characterize the histopathologic spectrum of the other genotypes and document the proliferation rate of the different sized APAs. Adrenals from 39 primary aldosteronism patients were immunohistochemically stained for CYP11B2 to confirm diagnosis of an APA...
July 2017: Hypertension
https://www.readbyqxmd.com/read/28584012/nefm-neurofilament-medium-polypeptide-a-marker-for-zona-glomerulosa-cells-in-human-adrenal-inhibits-d1r-dopamine-d1-receptor-mediated-secretion-of-aldosterone
#9
Carmela Maniero, Sumedha Garg, Wanfeng Zhao, Timothy Isaac Johnson, Junhua Zhou, Mark Gurnell, Morris J Brown
Heterogeneity among aldosterone-producing adenomas (APAs) has been highlighted by the discovery of somatic mutations. KCNJ5 mutations predominate in large zona fasciculata (ZF)-like APAs; mutations in CACNA1D, ATP1A1, ATP2B3, and CTNNB1 are more likely to be found in small zona glomerulosa (ZG)-like APAs. Microarray comparison of KCNJ5 mutant versus wild-type APAs revealed significant differences in transcriptomes. NEFM, encoding a neurofilament subunit which is a D1R (dopamine D1 receptor)-interacting protein, was 4-fold upregulated in ZG-like versus ZF-like APAs and 14-fold more highly expressed in normal ZG versus ZF...
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28578183/central-precocious-puberty-secondary-to-adrenocortical-adenoma-in-a-female-child-case-report-and-review-of-the-literature
#10
Betül Ersoy, Deniz Kizilay, Hasan Çayirli, Peyker Temiz, Cüneyt Günşar
BACKGROUND: Pediatric adrenocortical tumors are rare but significant causes of virilization and peripheral precocious puberty (PPP). CASE: A 4-year-old girl presented with development of breast, pubic hair, and facial acne. Her bone age was advanced, and gonadotropins did not elevate in gonadotropin-releasing hormone (GnRH) test. High levels of dehydroepiandrosterone-sulfate, estradiol, and testosterone and detection of a tumor in the left adrenal gland of the abdomen by computed tomography led to a diagnosis of PPP due to adrenal tumor...
May 31, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28551383/a-exceptional-collision-tumor-of-primary-adrenal-angiosarcoma-and-non-functioning-adrenocortical-adenoma
#11
Katsumi Takizawa, Kenichi Kohashi, Takahito Negishi, Kenichi Taguchi, Yuichi Yamada, Motonobu Nakamura, Yoshinao Oda
Primary adrenal angiosarcoma is an extremely rare vascular tumor. We report a case of a 63-year-old man with a collision tumor of epithelioid angiosarcoma and adrenocortical adenoma of the right adrenal gland. The adrenal tumor was incidentally observed by a preoperative computed tomography (CT) scan of penis squamous cell carcinoma. The patient underwent a right laparoscopic adrenalectomy, and the tumor size measured 34×34×15mm. Histological examination revealed two different tumor cell proliferations, namely epithelioid angiosarcoma and adrenocortical adenoma...
June 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28550366/minimally-invasive-resection-of-adrenal-masses-in-infants-and-children-results-of-a-european-multi-center-survey
#12
Francesco Fascetti-Leon, Giovanni Scotton, Luca Pio, Raimundo Beltrà, Paolo Caione, Ciro Esposito, Girolamo Mattioli, Amulya K Saxena, Sabine Sarnaki, Piergiorgio Gamba
BACKGROUND: Minimal access adrenal surgery (MAAS) for adrenal pathologies is the standard for many pediatric surgical centers. However, the literature offers few reports and minimal evidence from small case series. The aim of this study was to evaluate the outcomes of pediatric MAAS through a multi-center data analysis. METHOD: Pediatric patients who underwent MAAS between January 2002 and December 2013 were retrospectively included. Data analysis was conducted using Spss software (Welch's t-test, X-square, Fisher tests, multiple regression model)...
May 26, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28545287/-liddle-syndrome-complicating-with-nonfunctional-adrenal-cortical-adenoma-a-case-report
#13
P Zhang, L Q Kong, D J Huang
No abstract text is available yet for this article.
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28533356/loss-of-function-mutations-in-the-cables1-gene-are-a-novel-cause-of-cushing-s-disease
#14
Laura C Hernández-Ramírez, Ryhem Gam, Nuria Valdés, Maya Lodish, Nathan Pankratz, Aurélio Balsalobre, Yves Gauthier, Fabio R Faucz, Giampaolo Trivellin, Prashant Chittiboina, John Lane, Denise M Kay, Aggeliki Dimopoulou, Stephane Gaillard, Mario Neou, Jerome Bertherat, Guillaume Assié, Chiara Villa, James L Mills, Jacques Drouin, Constantine A Stratakis
The CABLES1 cell cycle regulator participates in the adrenal-pituitary negative feedback, and its expression is reduced in corticotropinomas, pituitary tumors with a largely unexplained genetic basis. We investigated the presence of CABLES1 mutations/copy number variations (CNVs) and their associated clinical, histopathological and molecular features in patients with Cushing's disease (CD). Samples from 146 pediatric (118 germline DNA only/28 germline and tumor DNA) and 35 adult (tumor DNA) CD patients were screened for CABLES1 mutations...
May 22, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28528397/perioperative-hypothalamic-pituitary-adrenal-function-in-patients-with-silent-corticotroph-adenomas
#15
Abdelle F Cheres, Nadine ElAsmar, Aman Rajpal, Warren R Selman, Baha M Arafah
BACKGROUND: Silent corticotroph adenomas (SCAs) are characterized by strong ACTH immunostaining without clinical manifestations of hypercortisolism. Patients with SCAs often present with mechanical symptoms related to tumor growth. This study investigates the hypothalamic pituitary adrenal axis (HPA) characteristics after adenomectomy in patients with SCAs. METHODS: Biochemical parameters of HPA function were monitored frequently after surgical resection of non-functioning macroadenomas...
May 20, 2017: Pituitary
https://www.readbyqxmd.com/read/28521424/reninoma-coexisting-with-adrenal-adenoma-during-pregnancy-a-case-report
#16
Mei Xue, Yan Chen, Jin Zhang, Youyan Guan, Lin Yang, Bing Wu
Reninoma is a rare form of secondary hypertension. The present study reported a case of reninoma that coexisted with an adrenal adenoma in a young female with secondary hypertension during pregnancy. The patient, a 31-year-old female exhibiting hypertension for >1 year, developed a mass in the right adrenal gland, which was detected by an ultrasound scan in the 33rd gestational week. In addition, a well-defined solid mass on the left kidney was detected by a magnetic resonance imaging scan1 month subsequent to the termination of the pregnancy...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28514805/expression-and-histopathological-significance-of-disabled-2-in-aldosterone-producing-adenoma
#17
Ping Li, Min Zhang, Jian-Qiang Ma, Qi Sun, Guang-Xiang Liu, Xiao-Zhi Zhao, Wen-Huan Feng, Shan-Mei Shen, Hong-Qian Guo, Da-Long Zhu
The current pathological diagnosis of aldosterone-producing adenoma (APA) is challenging because no histological markers of aldosterone production are available in routine practice. A previous study demonstrated that Disabled-2 (DAB2) is a specific marker of the zona glomerulosa (ZG) in rodents. The aim of the present study was to investigate the significance of immunohistochemical staining to detect DAB2 in the adrenal tissue of patients with APA. We investigated the expression of DAB2 in 36 adrenal glands with APA, 23 adrenal glands with cortisol-producing adenoma (CPA), and 33 adrenal glands with non-functioning adenoma (NFA)...
May 17, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28498785/laparoscopic-adrenalectomy-for-conn-s-syndrome-is-beneficial-to-patients-and-is-cost-effective-in-england
#18
Ioannis Christakis, John A Livesey, Gregory P Sadler, Radu Mihai
PURPOSE: Adrenalectomy has the potential to cure or improve the control of hypertension in patients with primary hyperaldosteronism due to unilateral adrenal adenoma (Conn's syndrome). This study assesses the patients' perception of, and costs associated with, laparoscopic adrenalectomy for Conn's syndrome. MATERIALS AND METHODS: Clinical, radiological, operative, and pathological data were collected on patients undergoing adrenalectomy for Conn's syndrome over 8-years period in a UK tertiary referral center...
May 12, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28497219/robot-assisted-adrenalectomy-indications-and-drawbacks
#19
C Nomine-Criqui, A Germain, A Ayav, L Bresler, L Brunaud
Adrenal tumors can vary from a benign adrenocortical adenoma with no hormonal secretion to a secretory adrenocortical malignancy (adrenocortical carcinoma) or a hormone-secreting tumor of the adrenal medulla (pheochromocytoma). Currently, laparoscopic adrenalectomy is regarded as the preferred surgical approach for the management of most adrenal surgical disorders, although there are no prospective randomized trials comparing this technique with open adrenalectomy. However, widespread adoption of robotic technology has positioned robotic adrenalectomy as an option in some medical centers...
May 12, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28494487/a-case-of-confirmed-primary-hyperaldosteronism-diagnosed-despite-normal-screening-investigations
#20
Richard Carroll, Alana Gould, Joe Feltham, Simon Harper
Primary hyperaldosteronism is a common cause of hypertension in the adult population. We report a case of histologically and biochemically confirmed hyperaldosteronism related to an adrenal adenoma, where initial screening and biochemical tests were potentially misleading. The case highlights the importance of clinical suspicion in the current diagnostic approach to primary hyperaldosteronism.
May 12, 2017: New Zealand Medical Journal
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