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Tumors of the adrenals

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https://www.readbyqxmd.com/read/28231563/hypoxia-pathway-mutations-in-pheochromocytomas-and-paragangliomas
#1
Diana Amorim-Pires, Joana Peixoto, Jorge Lima
Pheochromocytomas (PCC) and sympathetic paragangliomas (PGL) are rare neuroendocrine tumors, which derive from chromaffin cells occurring in the adrenal medulla and extra-adrenal sympathetic paraganglia. PCC and PGL are often benign, catecholamine-producing tumors, responsible for a myriad of symptoms that may be potentially hazardous to the patient. In contrast, nonsecreting parasympathetic PGL, derived from chief cells, develop mainly in the head and neck region. Although PCC/PGL are more commonly sporadic tumors, germline mutations are present in up to 40% of the patients, ranking these tumors among those with the highest degree of heritability...
February 24, 2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/28226363/coagulation-profile-in-patients-with-different-etiologies-for-cushing-syndrome-a-prospective-observational-study
#2
Amit Tirosh, Maya Lodish, Charalampos Lyssikatos, Elena Belyavskaya, Richard A Feelders, Constantine A Stratakis
Previous studies reported a higher prevalence of venous-thromboembolic events among patients with Cushing disease (CD) compared to those with ACTH-independent Cushing syndrome (CS) from adrenal sources. The objective of the current study was to evaluate the coagulation profile of patients with CS from different etiologies. A prospective observational study was conducted at a clinical research center. The study included adult patients admitted for evaluation of suspected CS (n=85), that were divided into 3 groups: CD (n=22), ACTH-independent CS from an adrenal tumor/hyperplasia (adrenal CS, n=21), and a control group consisting of subjects with negative screening for CS (rule-out CS, n=42)...
February 22, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28225994/a-rare-case-of-ectopic-acth-syndrome-originating-from-malignant-renal-paraganglioma
#3
Esra Tutal, Demet Yılmazer, Taner Demirci, Evrim Cakır, Salih Sinan Gültekin, Bahadır Celep, Oya Topaloğlu, Erman Çakal
Ectopic adrenocorticotropic hormone (ACTH) syndrome is characterized by hypercortisolism due to the hypersecretion of a non-pituitary ACTH-secreting tumor leading to Cushing's syndrome. Only a few cases have been reported previously as causing ectopic ACTH related to paraganglioma. Herein, we present a case of Cushing's syndrome, in who was proved to be attributable to an ACTH-secreting renal malignant paraganglioma. A 40-year-old woman presented with a five-month history of newly diagnosed hypertension and diabetes, weakness, hyperpigmentation, oligomenorrhea, hirsutism, and acneiform lesions...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28223072/surgical-treatment-of-lung-cancer-with-synchronous-adrenal-metastases-adrenalectomy-first
#4
Fernando Pardo Aranda, Itziar Larrañaga Blanc, Joaquín Rivero Déniz, Juan Carlos Trujillo, Arantxa Rada Palomino, Esteban García-Olivares, Ramón Rami Porta, Enrique Veloso Veloso
INTRODUCTION: The aim of this study is to present our patients with lung cancer and synchronous adrenal metastases treated with a reversal approach: starting with adrenalectomy and doing the lung resection second. METHODS: A total of 108 laparoscopic adrenalectomies were performed, and we analyze a consecutive serie of 10 patients with isolated adrenal synchronous metastases from the lung, surgically treated in a sequential way. All patients underwent staging mediastinoscopy, and patients with positive lymph nodes were primary treated with chemotherapy...
February 18, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28222025/radiology-of-the-adrenal-incidentalomas-review-of-the-literature
#5
F A Farrugia, G Martikos, C Surgeon, P Tzanetis, E Misiakos, N Zavras, A Charalampopoulos
The term "adrenal incidentaloma" is a radiological term. Adrenal incidentalomas are adrenal tumors discovered in an imaging study that has been obtained for indications exclusive to adrenal conditions (Udelsman 2001; Linos 2003; Bulow et al. 2006; Anagnostis et al. 2009). This definition excludes patients undergoing imaging testing as part of staging and work-up for cancer (Grumbach et al. 2003; Anagnostis et al. 2009). Papierska et al. (2013) have added the prerequisite that the size of a tumor must be "greater than 1cm in diameter", in order to be called incidentaloma...
January 1, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/28218887/pathology-of-serially-sacrificed-female-b6c3f1-mice-chronically-exposed-to-very-low-dose-rate-gamma-rays
#6
I B Tanaka, J Komura, S Tanaka
We have previously reported on life span shortening as well as increased incidence rates in several neoplasms in B6C3F1 mice that were continuously exposed to 21 mGy/day of gamma rays for 400 days. To clarify whether the life shortening was due to early appearance of neoplasms (shortened latency) or increased promotion/progression, 8-week-old female specific-pathogen-free B6C3F1 mice were gamma-ray irradiated at a low dose rate of 20 mGy/day for 400 days. At 100 days postirradiation, 60-90 mice were sacrificed, and thereafter every 100 days alongside the age-matched nonirradiated controls, for 700 days...
February 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28216934/adrenal-myelolipoma-with-osseous-metaplasia-and-hypercortisolism
#7
Ujwal Kumar, Shivam Priyadarshi, Vinay Tomar, Rishi Raj Vohra
Adrenal myelolipomas are rare adrenal tumors generally diagnosed incidentally. A 42-year-old female reported to us with complaints of left flank pain attributable to her left ureteric calculi. On evaluation, a large adrenal mass was diagnosed along with hypercortisolism. After adrenalectomy, the histopathology revealed adrenal myelolipoma along with osseous metaplasia not reported in English literature, to the best of our knowledge till date.
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28211281/jejunal-metastasis-of-renal-cell-carcinoma
#8
Pamela Estévez Boullosa, Alfonso Martínez Turnes, Roberto Carracedo Iglesias, José Ignacio Rodríguez Prada
A 71-year-old female presented with melena and anemia. She had a past medical history of renal cell carcinoma diagnosed six years earlier and treated with left nephrectomy. Gastroscopy and colonoscopy showed no abnormalities. Renal cell carcinoma (RCC) is the third commonest urological malignancy, and approximately 25-50% of patients develop metastatic disease after surgery of the primary tumor. The most common sites of metastasis involve lung, lymph nodes, liver, bone and adrenal glands.
February 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28202863/paroxysmal-hypertension-induced-by-an-insulinoma
#9
Ko Harada, Yoshihisa Hanayama, Kou Hasegawa, Masaya Iwamuro, Hideharu Hagiya, Ryuichi Yoshida, Fumio Otsuka
Insulinoma is a rare, usually benign, pancreatic neuroendocrine tumor. The clinical features of an insulinoma are fasting hypoglycemia with neuroglycopenic symptoms including confusion and unusual behavior, while hypertension is usually not associated with the disease. We herein report a patient with insulinoma who manifested paroxysmal hypertension and neuroglycopenic symptoms. The possible etiology of hypertension induced by an insulinoma is catecholamine release in response to hypoglycemia, which may cause acute hypertension through activation of the sympatho-adrenal system...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28202512/tumor-associated-neutrophils-and-macrophages-promote-gender-disparity-in-hepatocellular-carcinoma-in-zebrafish
#10
Chuan Yan, Qiqi Yang, Zhiyuan Gong
Hepatocellular carcinoma (HCC) occurs more frequently and aggressively in men than women, but the mechanistic basis of this gender disparity is obscure. Chronic inflammation is a major etiological factor in HCC, so we investigated the role of cortisol in gender discrepancy in a zebrafish model of HCC. Inducible expression of oncogenic KrasV12 in hepatocytes of transgenic zebrafish resulted in accelerated liver tumor progression in males. These tumors were more heavily infiltrated with tumor-associated neutrophils (TAN) and macrophages (TAM) versus females, and they both showed pro-tumor gene expression and promoted tumor progression...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28199934/mixed-corticomedullary-adrenal-carcinoma-case-report-comparison-in-features-treatment-and-prognosis-with-the-other-two-reported-cases
#11
Mhd Belal Alsabek, Riad Alhmaidi, Bader Ghazzawi, Ghiath Hamed, Alhadi Alseoudi
INTRODUCTION: Adrenal corticomedullary adenoma was reviewed in many cases in PubMed Library, While the coincidence corticomedullary adrenal carcinoma in the same gland was just described in two cases in the medical literature. Our case is the third to be reported and was treated with surgery and adjuvant chemotherapy and followed for two years. PRESENTATION OF CASE: A 50-year-old man suffered from a mass effect in the left abdominal side. While the laboratory showed a mild elevation in the levels of both serum cortisol and 24h urine cortisol, radiological images were highly suggested an adrenal malignant tumor without metastasis...
January 31, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28197344/from-bad-to-worse-paraganglioma-diagnosis-during-induction-of-labor-for-coexisting-preeclampsia
#12
Sasima Dusitkasem, Blair H Herndon, Dalton Paluzzi, Joseph Kuhn, Robert H Small, John C Coffman
Pheochromocytomas and extra-adrenal paragangliomas are catecholamine-secreting tumors that rarely occur in pregnancy. The diagnosis of these tumors in pregnancy can be challenging given that many of the signs and symptoms are commonly attributed to preeclampsia or other more common diagnoses. Early diagnosis and appropriate management are essential in optimizing maternal and fetal outcomes. We report a rare case of a catecholamine-secreting tumor in which diagnosis occurring at the time labor was being induced for concomitant preeclampsia with severe features...
2017: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/28197025/current-perioperative-management-of-pheochromocytomas
#13
REVIEW
Rashmi Ramachandran, Vimi Rewari
Neuroendocrine tumors which have the potential to secrete catecholamines are either associated with sympathetic adrenal (pheochromocytoma) or nonadrenal (paraganglioma) tissue. Surgical removal of these tumors is always indicated to cure and prevent cardiovascular and other organ system complications associated with catecholamine excess. Some of these tumors have malignant potential as well. The diagnosis, localization and anatomical delineation of these tumors involve measurement of catecholamines and their metabolic end products in plasma and urine, (123)I-metaiodobenzylguanidine scintigraphy, computed tomography, and/or magnetic resonance imaging...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28187001/molecular-markers-of-paragangliomas-pheochromocytomas
#14
REVIEW
Svetlana O Zhikrivetskaya, Anastasiya V Snezhkina, Andrew R Zaretsky, Boris Y Alekseev, Anatoly V Pokrovsky, Alexander L Golovyuk, Nataliya V Melnikova, Oleg A Stepanov, Dmitry V Kalinin, Alexey A Moskalev, George S Krasnov, Alexey A Dmitriev, Anna V Kudryavtseva
Paragangliomas/pheochromocytomas comprise rare tumors that arise from the extra-adrenal paraganglia, with an incidence of about 2 to 8 per million people each year. Approximately 40% of cases are due to genetic mutations in at least one out of more than 30 causative genes. About 25-30% of pheochromocytomas/paragangliomas develop under the conditions of a hereditary tumor syndrome a third of which are caused by mutations in the VHL gene. Together, the gene mutations in this disorder have implicated multiple processes including signaling pathways, translation initiation, hypoxia regulation, protein synthesis, differentiation, survival, proliferation, and cell growth...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28179447/diagnosis-of-endocrine-disease-differentiation-of-pathologic-neoplastic-hypercortisolism-cushing-syndrome-from-physiologic-non-neoplastic-hypercortisolism-formerly-known-as-pseudo-cushing-syndrome
#15
James Findling, Hershel Raff
Endogenous hypercortisolism (Cushing syndrome) usually implies the presence of a pathologic condition caused by either an ACTH-secreting neoplasm or autonomous cortisol secretion from a benign or malignant adrenal neoplasm. However, sustained or intermittent hypercortisolism may also accompany many medical disorders that stimulate physiologic/non-neoplastic activation of the HPA axis (formerly known as pseudo-Cushing syndrome); these two entities may share indistinguishable clinical and biochemical features...
February 8, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28160046/eag1-voltage-dependent-potassium-channels-structure-electrophysiological-characteristics-and-function-in-cancer
#16
REVIEW
Xuzhao Wang, Yafei Chen, Yuhong Zhang, Shuai Guo, Li Mo, Hailong An, Yong Zhan
Eag1 (ether-à-go-go-1), a member of the voltage-dependent potassium channel family, is expressed mainly in the brain, and at low levels in placenta, testis, and adrenal gland, and only transiently in myoblasts. Recently, several studies have suggested that Eag1 is selectively expressed in various tumor tissues. Eag1 plays important roles in tumor proliferation, malignant transformation, invasion, metastasis, recurrence, and prognosis. Therefore, it has become a new molecular target for tumor diagnosis, prognosis evaluation, and tumor-targeted therapy...
February 3, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28152904/quality-and-value-of-subspecialty-reinterpretation-of-outside-thoracic-ct-scans-of-patients-referred-to-a-tertiary-cancer-center
#17
Jeremy J Erasmus, Mylene Truong, Reginald F Munden, Jo-Anne O Shepard, Ryan Kristopher Clarke, Joseph Rodgers Steele
: 265 Background: At tertiary cancer centers, physicians frequently request reinterpretation of imaging studies performed at outside institutions. The purposes of this study were to determine the quality of outside computed tomography (CT) scans of the chest and compare the accuracy of accompanying radiology reports from outside institutions and our multidisciplinary cancer center. METHODS: Two thoracic radiologists graded the quality of 59 outside chest CT scans and generated independent reports for 52 of the scans...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28138408/kidney-ultrasound-what-is-important-for-a-urologist
#18
REVIEW
Tomasz Szopiński, Elżbieta Keller, František Záťura
Kidney ultrasound is one of the basic procedures in the practice of a urologist. Apart from the location and the size, description of renal morphology should contain the thickness of the anterior lip parenchyma in a transverse section and the location of possible narrowings. Uneven outline of the kidney is a sign of past inflammatory conditions. In the case of the pelvicalyceal system dilation, it is advised to specify the dimensions of the pelvis and calyces. Convex shape of the calyces proves elevated pressure within the pelvicalyceal system...
December 2016: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28138407/the-value-of-ultrasonography-in-the-diagnosis-of-varicocele
#19
REVIEW
Tomasz Lorenc, Leszek Krupniewski, Piotr Palczewski, Marek Gołębiowski
A varicocele is described as pathologically enlarged, tortuous veins of the pampiniform plexus, leading to an increased testicular temperature and adrenal metabolite reflux into the testes. Varicocele can impair spermatogenesis and is considered to be the most common cause of male infertility. Patients may palpate a thickening in the scrotum or complain of dull scrotal or inguinal pain, which increases when standing or during erection. In the case of a sudden onset of varicocele in elderly men, it is necessary to exclude renal tumor and extend diagnostic ultrasound with the assessment of the abdominal cavity...
December 2016: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28134695/multiple-endocrine-neoplasia-type-2b-unmasked-by-18f-fdg-pet-ct-and-131i-mibg-spect-ct
#20
Xun Sun, Maher Mohamad Rajab Arnous, Xiaoli Lan
F-FDG PET/CT was performed to detect an occult malignancy in a 26-year-old woman with complicated medical history which included paroxysmal hypertension and significantly elevated tumor marker. The images revealed lesions in the thyroid, lymph nodes, and bilateral adrenal glands. Further I-MIBG SPECT/CT revealed intense activity in the lesion in the left adrenal gland, which was consistent with pheochromocytoma. The pathology examination after subsequent neck biopsy demonstrated medullary thyroid carcinoma...
January 27, 2017: Clinical Nuclear Medicine
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