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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/29036015/transient-pituitary-acth-dependent-cushing-syndrome-caused-by-an-immune-checkpoint-inhibitor-combination
#2
Jeremy Lupu, Cécile Pages, Pauline Laly, Julie Delyon, Marie Laloi, Antoine Petit, Nicole Basset-Seguin, Imen Oueslati, Anne-Marie Zagdanski, Jacques Young, Clara Bouche, Céleste Lebbé, Jean-François Gautier
Immune checkpoint inhibitors have improved survival in numerous advanced malignancies, but are associated with a number of immune-related adverse events, including endocrinopathies. Endogenous Cushing's syndrome (CS) is a rare disorder resulting from exposure to high levels of circulating cortisol. CS can be caused either by adrenal cortex tumors or hyperplasia or by pituitary or extra-pituitary tumors over-secreting ACTH (known as ACTH-dependent CS). We report the first case of transient ACTH-dependent CS, which appeared after combined ipilimumab and nivolumab therapy...
October 13, 2017: Melanoma Research
https://www.readbyqxmd.com/read/29033772/intraparenchymal-hemorrhage-due-to-brain-metastasis-of-hepatocellular-carcinoma
#3
Rafael Sartori Balbinot, Ana Laura Facco Muscope, Mateus Dal Castel, Silvana Sartori Balbinot, Raul Angelo Balbinot, Jonathan Soldera
Although extrahepatic metastases from hepatocellular carcinoma (HCC) are present in only 5-15% of cases, they are certainly factors associated with poor prognosis. The main sites include lung, lymph nodes, bones, and adrenal glands, in descending order. Metastasis in the central nervous system is extremely rare, and the incidences vary from 0.6 to 1.7%. We report a case of a 54-year-old man previously diagnosed with alcohol-induced cirrhosis of the liver and HCC. The patient was admitted presenting progressive left hemiparesis and headache which started 2 days earlier, with no history of cranioencephalic trauma...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29033674/appearance-of-adrenal-myelolipomas-on-2-deoxy-2-18-f-fluoro-d-glucose-positron-emission-tomography-computed-tomography
#4
Steven P Rowe, Mehrbod S Javadi, Lilja B Solnes, Elliot K Fishman
With the widespread use of 2-deoxy-2-((18)F) fluoro-D-glucose positron emission tomography-computed tomography (FDG PET/CT) in oncologic imaging, it has become increasingly important for physicians who interpret FDG PET/CT scans to confidently recognize the spectrum of incidentally encountered benign and malignant findings. The adrenal glands represent an interesting nexus of multiple rare and common benign intrinsic tumors as well as metastases from a variety of primary malignancies. Given the breadth of adrenal gland pathology, careful description of the FDG PET/CT appearance of these pathologies is of value to help reduce misinterpretation...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29031687/structure-function-relationships-for-the-selective-inhibition-of-human-3%C3%AE-hydroxysteroid-dehydrogenase-type-1-by-a-novel-androgen-analog
#5
Jenny H Pham, Catherine M Will, Vance L Mack, Matthew Halbert, Edward Alexander Conner, Kevin M Bucholtz, James L Thomas
3β-hydroxysteroid dehydrogenase type 1 (3β-HSD1) is selectively expressed in human placenta, mammary glands and breast tumors in women. Human 3β-HSD2 is selectively expressed in adrenal glands and ovaries. Based on AutoDock 3 and 4 results, we have exploited key differences in the amino acid sequences of 3β-HSD1 (Ser194, Arg195) and 3β-HSD2 (Gly194, Pro195) by designing a selective inhibitor of 3β-HSD1. 2,16-Dicyano-4,5-epoxy-androstane-3,17-dione (16-cyano-17-keto-trilostane or DiCN-AND) was synthesized in a 4-step procedure from androstenedione...
October 11, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29030614/retinal-degeneration-protein-3-rd3-in-normal-human-tissues-novel-insights
#6
Sheeja Aravindan, Dinesh Babu Somasundaram, Kwok Ling Kam, Karthikeyan Subramanian, Zhongxin Yu, Terence S Herman, Kar-Ming Fung, Natarajan Aravindan
The 195-amino-acid-long human Retinal Degeneration Protein 3 (RD3) is critical in the regulation of guanylate cyclase (GC) signaling and photoreceptor cell survival. Recently, we identified significant loss of RD3 in high-risk neuroblastoma and the influential role of RD3 in tumor progression. However, the functional characterization of RD3 in tumor systems has been hampered by the dearth of information on its localization in normal tissue and by the lack of antibodies suitable for staining FFPE tissue, primarily due to the inaccessibility of the epitopes...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29028646/advances-in-understanding-the-molecular-underpinnings-of-adrenocortical-tumors
#7
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/29027617/zebrafish-as-a-model-to-study-neuroblastoma-development
#8
REVIEW
Mattie J Casey, Rodney A Stewart
Neuroblastoma is a pediatric solid tumor arising from embryonic neural crest progenitor cells that normally generate the peripheral sympathetic nervous system. As such, the location of neuroblastoma tumors is correlated with the distribution of major post-ganglionic clusters throughout the sympathetic chain, with the highest incidence in the adrenal medulla or lumbar sympathetic ganglia (~65%). Neuroblastoma is an enigmatic tumor that can spontaneously regress with minimal treatment or become highly metastatic and develop resistance to aggressive treatments, including radiation and high-dose chemotherapy...
October 13, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29026467/chromogranin-a-as-a-biochemical-marker-for-neuroendocrine-tumors-a-single-center-experience-at-royal-hospital-oman
#9
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/29026405/lateral-retroperitoneoscopic-adrenalectomy-for-complicated-adrenal-tumor-larger-than-5-centimeters
#10
Wei Chen, Wei Lin, Deng-Jun Han, Yong Liang
BACKGROUND: The role of lateral retroperitoneoscopic adrenalectomy (LRA) for complicated tumor with large diameter remains controversial, this study aimed to evaluate the effectiveness of this procedure on the management of tumor larger than 5cm in diameter. METHODS: A retrospective comparison was conducted of 67 patients with large complicated adrenal tumor (>5cm). 41 patients received LRA, and 26 received open adrenalectomy (OA) in our hospital between January 2011 and June 2015...
March 2017: African Health Sciences
https://www.readbyqxmd.com/read/29025857/endocrine-side-effects-of-cancer-immunotherapy
#11
Priscilla Cukier, Fernando C Santini, Mariana Scaranti, Ana O Hoff
Immune checkpoint inhibitors have recently become a cornerstone for the treatment of different advanced cancers. These drugs, represented mainly by monoclonal antibodies anti-cytotoxic T-lymphocyte antigen 4 (CTLA-4), anti-programmed cell death protein-1 (PD-1) and anti-PD-1 ligand molecules (PD-L1 and L2), have the ability to reactivate the immune system against tumor cells, but can also trigger a myriad of autoimmune side effects, termed immune-related adverse events (irAEs). In particular, there are a number of endocrine related irAEs...
October 12, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29022106/minimally-invasive-adrenalectomy-for-adrenocortical-carcinoma-five-year-trends-and-predictors-of-conversion
#12
Natalie A Calcatera, Chi Hsiung-Wang, Nicholas R Suss, David J Winchester, Tricia A Moo-Young, Richard A Prinz
BACKGROUND: Adrenocortical carcinoma (ACC) is rare but often fatal. Surgery offers the only chance of cure. As minimally invasive (MI) procedures for cancer become common, their role for ACC is still debated. We reviewed usage of MI approaches for ACC over time and risk factors for conversion using a large national database. METHODS: ACC patients with localized disease were identified in the National Cancer Data Base from 2010 to 2014. A retrospective review examined trends in the surgical approach over time...
October 11, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29021924/large-unilateral-adrenal-mass-with-surrounding-brown-fat-a-case-report
#13
Gabriel O Ologun, Zinal M Patel, Navpreet K Rana, Andrew Trecartin, Alice Shen, Douglas Trostle, David Bertsch
Pheochromocytomas are rare tumors derived from chromaffin cells located in the adrenal and extra adrenal tissues. Pheochromocytomas are diagnosed biochemically and localized using different imaging modalities. The definitive management is surgical resection. Brown adipose tissues are normally present during fetal development, with regression over time. Brown adipose tissues are thermogenic and usually located in the neck, mediastinum, and retroperitoneum. Here, we report a case of a unilateral pheochromocytoma surrounded by brown fat...
August 9, 2017: Curēus
https://www.readbyqxmd.com/read/29017055/microenvironment-driven-shift-of-cohesion-detachment-balance-within-tumors-induces-a-switch-toward-metastasis-in-neuroblastoma
#14
Céline Delloye-Bourgeois, Lorette Bertin, Karine Thoinet, Loraine Jarrosson, Karine Kindbeiter, Thomas Buffet, Servane Tauszig-Delamasure, Muriel Bozon, Aurélien Marabelle, Valérie Combaret, Christophe Bergeron, Edmund Derrington, Valérie Castellani
Neuroblastoma (NB) is a childhood cancer arising from sympatho-adrenal neural crest cells. Disseminated forms have high frequency of multiple tumoral foci whose etiology remains unknown; NB embryonic origin limits investigations in patients and current models. We developed an avian embryonic model driving human NB tumorigenesis in tissues homologous to patients. We found that aggressive NBs display a metastatic mode, secondary dissemination via peripheral nerves and aorta. Through tumor transcriptional profiling, we found that NB dissemination is induced by the shutdown of a pro-cohesion autocrine signal, SEMA3C, which constrains the tumoral mass...
October 9, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28994638/dendrimers-carotenoids-and-monoclonal-antibodies
#15
Yuriy K Bashmakov, Ivan M Petyaev
Dendrimers are unimolecular architectural nano- or microparticle entities that can accommodate various nutraceuticals and pharmaceuticals between their branches (dendrons) and provide targeted delivery of biomimetics into different tissues upon addition of functionalized groups to the dendrimer's surface. Covalent binding, hydrogen bonds, and electrostatic interactions between dendrimer-composing molecules are known to form and stabilize dendrimer structure. Carotenoids have recently been shown to form dendrimer-like structures and promote targeted delivery of "cargo" molecules into organs characterized by high-carotenoid uptake (adrenal glands, prostate, liver, and brain)...
October 10, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28990687/phrenicoabdominal-venotomy-for-tumor-thrombectomy-in-dogs-with-adrenal-neoplasia-and-suspected-vena-caval-invasion
#16
Philipp D Mayhew, William T N Culp, Ingrid M Balsa, Allison L Zwingenberger
OBJECTIVE: To describe a technique for tumor thrombectomy by phrenicoabdominal venotomy in dogs with adrenal neoplasia and suspected caval invasion and to report complications and outcomes associated with the procedure. STUDY DESIGN: Retrospective case series. ANIMALS: Eight client-owned dogs with invasive adrenal tumors. METHODS: Medical records of dogs diagnosed with adrenal tumors with extension of thrombus into the phrenicoabdominal vein (PAV) and vena cava were reviewed...
October 9, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28989884/diagnosis-of-adrenocortical-tumors-by-reticulin-algorithm
#17
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/28988646/pembrolizumab-in-advanced-soft-tissue-sarcoma-and-bone-sarcoma-sarc028-a-multicentre-two-cohort-single-arm-open-label-phase-2-trial
#18
Hussein A Tawbi, Melissa Burgess, Vanessa Bolejack, Brian A Van Tine, Scott M Schuetze, James Hu, Sandra D'Angelo, Steven Attia, Richard F Riedel, Dennis A Priebat, Sujana Movva, Lara E Davis, Scott H Okuno, Damon R Reed, John Crowley, Lisa H Butterfield, Ruth Salazar, Jaime Rodriguez-Canales, Alexander J Lazar, Ignacio I Wistuba, Laurence H Baker, Robert G Maki, Denise Reinke, Shreyaskumar Patel
BACKGROUND: Patients with advanced sarcomas have a poor prognosis and few treatment options that improve overall survival. Chemotherapy and targeted therapies offer short-lived disease control. We assessed pembrolizumab, an anti-PD-1 antibody, for safety and activity in patients with advanced soft-tissue sarcoma or bone sarcoma. METHODS: In this two-cohort, single-arm, open-label, phase 2 study, we enrolled patients with soft-tissue sarcoma or bone sarcoma from 12 academic centres in the USA that were members of the Sarcoma Alliance for Research through Collaboration (SARC)...
October 4, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28984419/diagnosis-of-pediatric-neuroblastoma-by-urine-cytology-a-case-report
#19
Shiori Nishikawa, Hiroshi Noguchi, Takako Tokumitsu, Akinobu Ohno, Sayaka Moriguchi-Goto, Kazunari Maekawa, Yujiro Asada, Hiroshi Moritake, Mariko Kinoshita, Ai Yamada, Kazunari Takamura, Yuichiro Sato
Neuroblastomas are embryonal tumors arising from the neuronal crest cells of the synaptic nervous system. Findings from aspiration cytology have been reported, but there have been no reports of urine cytology findings. Here, we report a case of pediatric neuroblastoma characterized by urine cytology. A 2-year-old boy presented with abdominal pain, nausea, and loss of appetite. Computed tomography revealed a large tumor in the left suprarenal region with massive infiltration into the kidney. Urinary cytology showed highly cellular clusters composed of small, round, atypical cells with little cytoplasm and high nuclear/cytoplasmic ratio; nuclear molding was also noted in some places...
October 6, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28982623/robotic-radical-left-nephrectomy-with-inferior-vena-cava-level-iii-thrombectomy
#20
Ryan J Nelson, Matthew J Maurice, Jihad H Kaouk
INTRODUCTION AND OBJECTIVE: We present our robotic approach and technique to manage a large left renal tumor with inferior vena cava (IVC) Level III thrombus. The superior mesenteric artery crossing the left renal vein requires robotic docking from the left, for dissection of the left kidney followed by repositioning and re-docking the robot from the right side for dissection of the right renal vein, distal and proximal IVC, and the remaining left renal vein insertion into the IVC. METHODS: We present a 53-year-old man with a 10...
September 2017: Urology
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