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Parathyroid carcinoma

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https://www.readbyqxmd.com/read/28533650/extensive-visceral-calcification-demonstrated-on-99m-tc-mdp-bone-scan-in-patient-with-carcinoma-penis-and-hypercalcemia-of-malignancy
#1
Sunny J Gandhi, Bhavdeep Rabadiya
Hypercalcemia is a common life-threatening complication associated with several malignancies. Parathyroid-related peptide has been shown to cause hypercalcemia in several solid tumors but rarely in penile cancer. We report a case of penile cancer with hypercalcemia causing metastatic visceral calcification in lungs, liver, and stomach detected on bone scan without significant abnormalities on CT scan.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28506410/effectiveness-of-intraoperative-parathyroid-monitoring-iopth-in-predicting-a-multiglandular-or-malignant-parathyroid-disease
#2
C Dobrinja, G Santandrea, M Giacca, Elisabetta Stenner, Maurizio Ruscio, Nicolò de Manzini
AIM: The main goal of our study was to confirm the usefulness of intra-operative parathyroid hormone (PTH) monitoring (ioPTH) when using minimally invasive techniques for treatment of sporadic Primary hyperparathyroidism (pHTP). Furthermore, we aimed to evaluate if ioPTH monitoring may help to predict the etiology of primary hyperparathyroidism, especially in malignant or multiglandular parathyroid disease. METHODS: A retrospective review of 125 consecutive patients with pHPT who underwent parathyroidectomy between 2001 and 2016 at the Department of General Surgery was performed...
May 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28491324/giant-parathyroid-adenoma-differential-aspects-compared-to-parathyroid-carcinoma
#3
Marta Araujo Castro, Ainhoa Abad López, Luz Martín Fragueiro, Nuria Palacios García
The 85% of cases of primary hyperparathyroidism (PHPT) are due to parathyroid adenomas (PA) and less than 1% to parathyroid carcinomas (PC). The PA usually measure <2 cm, weigh <1 g and generate a mild PHPT, whereas the PC usually exceeds these dimensions and are associated with a severe PHPT. However, giant PA (GPA), which is defined as those larger than 3 g, has been documented. Those may be associated with very high levels of PTH and calcium. In these cases, their differentiation before and after surgery with PC is very difficult...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28469779/analysis-of-differentially-expressed-micrornas-in-men1-parathyroid-adenomas
#4
Ettore Luzi, Simone Ciuffi, Francesca Marini, Carmelo Mavilia, Gianna Galli, Maria Luisa Brandi
Multiple Endocrine Neoplasia type 1 (MEN1) syndrome is a rare complex tumor-predisposing hereditary disorder, inherited in an autosomal dominant manner (OMIM 131100). MEN1 is characterized by tumors of the parathyroids, the neuroendocrine cells of the gastro-entero-pancreatic tract, and the anterior pituitary. The molecular mechanisms that control parathyroid tumorigenesis are still poorly understood. Here we studied the global microRNAs (miRNAs) expression profile in MEN1 parathyroid adenomas to understand the role of these regulatory factors in MEN1 parathyroid tumorigenesis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28458892/diagnosis-and-treatment-challenges-of-parathyroid-carcinoma-in-a-27-year-old-woman-with-multiple-lung-metastases
#5
Liudmila Rozhinskaya, Ekaterina Pigarova, Ekaterina Sabanova, Elizaveta Mamedova, Iya Voronkova, Julia Krupinova, Larisa Dzeranova, Anatoly Tiulpakov, Vera Gorbunova, Nadezhda Orel, Artur Zalian, Galina Melnichenko, Ivan Dedov
SUMMARY: Parathyroid carcinoma is an extremely rare disorder with little treatment options. It could be misdiagnosed in medical centers with little experience in management of such cases. Our clinical case shows that the initial misdiagnosis of a parathyroid carcinoma in a young woman has led to the development of multiple lung metastases, thus making its treatment hardly possible. Initiation of treatment with sorafenib - a multi-kinase inhibitor approved for treatment of different types of cancer but not parathyroid carcinoma - has led to a significant decrease in the size of lung metastases and has prevented the progression of hyperparathyroidism, which is usually severe in cases of parathyroid carcinoma...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28455835/surgical-approaches-in-hereditary-endocrine-tumors
#6
REVIEW
Maurizio Iacobone, Marilisa Citton, Giovanni Viel, Donatella Schiavone, Francesca Torresan
Endocrine tumors of thyroid, adrenal and parathyroid glands may be due to germline and inheritable mutations in 5-30% of patients. Medullary Thyroid Carcinoma, Pheochromocytoma, Paraganglioma, and Familial Primary Hyperparathyroidism are the most frequent entity. Hereditary endocrine tumors usually have a suggestive familial history; they occur earlier than sporadic variants, are multifocal, and have increased recurrence rates. They may be present as isolated variant or associated to other neoplasms in a syndromic setting...
April 28, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28434176/persistent-and-recurrent-hyperparathyroidism
#7
REVIEW
Carole Guerin, Nunzia Cinzia Paladino, Aoife Lowery, Fréderic Castinetti, David Taieb, Fréderic Sebag
Despite remarkable progress in imaging modalities and surgical management, persistence or recurrence of primary hyperparathyroidism (PHPT) still occurs in 2.5-5% of cases of PHPT. The aim of this review is to expose the management of persistent and recurrent hyperparathyroidism. A literature search was performed on MEDLINE using the search terms "recurrent" or "persistent" and "hyperparathyroidism" within the past 10 years. We also searched the reference lists of articles identified by this search strategy and selected those we judged relevant...
April 22, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28427885/prognostic-scoring-system-to-risk-stratify-parathyroid-carcinoma
#8
Angelica M Silva-Figueroa, Kenneth R Hess, Michelle D Williams, Callisia N Clarke, Ioannis Christakis, Paul H Graham, Elizabeth G Grubbs, Jeffrey E Lee, Naifa L Busaidy, Nancy D Perrier
BACKGROUND: Parathyroid carcinoma is a rare endocrine malignancy that lacks an established system for risk categorization. This study evaluated a prognostic scoring system for recurrence-free survival (RFS) of patients with parathyroid carcinoma. STUDY DESIGN: Patients diagnosed and confirmed to have parathyroid carcinoma and who were treated between 1980 and 2016 at The University of Texas MD Anderson Cancer Center were studied retrospectively. Univariate and multivariate Cox proportional hazards regression analyses of RFS were conducted...
March 15, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28420920/the-many-guises-of-primary-hyperparathyroidism-an-unchanged-scenario
#9
Tasnim Ahsan, Uzma Erum, Khawaja Mohammad Inam Pal, Rukhshanda Jabeen, Saima Ghaus Qureeshi, Urooj Lal Rehman, Zeenat Banu
OBJECTIVE: To study the causes, characteristics and outcome of treatment of patients with primary hyperparathyroidism. METHODS: This retrospective cohort analysis was conducted at the Jinnah Postgraduate Medical Centre, Karachi, and comprised data of patients with primary hyperparathyroidism between 2004 and 2014. .SPSS 17 was used for data analysis. RESULTS: Of the 25 patients,1(4%)was male and 24(96%) were female. The overall mean age was 41...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28400272/epigenetic-processes-in-sporadic-parathyroid-neoplasms
#10
REVIEW
Angelica M Silva-Figueroa, Nancy D Perrier
Parathyroid tumors (PTs) are highly variable in their genetic background. Increasing evidence demonstrates that endocrine diseases can be caused by epigenetic alterations. The present review is focused on epigenetic aberrations related to PTs. DNA methylation, posttranslational histone modification, and noncoding RNAs are epigenetic mechanisms involved in parathyroid tumorigenesis. The information in this review has the potential to define epigenetic signatures associated with PTs for future use as diagnostic markers and lead to the development of new epigenetic drugs with therapeutic applications for these tumors...
April 8, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28394837/18f-fluorocholine-18f-fdg-and-18f-fluoroethyl-tyrosine-pet-ct-in-parathyroid-cancer
#11
Margit Hatzl, Julia C Röper-Kelmayr, Franz A Fellner, Michael Gabriel
We report on a 71-year-old woman presenting with biochemical features indicating recurrent disease in long-term follow-up of left-sided parathyroid carcinoma. She had undergone several surgical procedures including total thyroidectomy, partial resection of the esophageal wall, and curative neck radiation 12 years previously. PET/CT using F-fluorocholine revealed high uptake in local relapse in the lower neck, comparable to F-FDG, whereas only faint uptake was observed with F-fluoroethyl tyrosine. As shown in this case, imaging with FDG and F-fluorocholine is feasible in (recurrent) parathyroid carcinoma and clearly superior to F-fluoroethyl tyrosine...
June 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28385776/rsk-activation-via-erk-modulates-human-colon-cancer-cells-response-to-pthrp
#12
Natalia Calvo, Pedro Carriere, Maria Julia Martin, Claudia Gentili
Parathyroid Hormone-related Peptide (PTHrP) is associated with several human cancers such as colon carcinoma. This disease is a complex multistep process that involves enhanced cell cycle progression and migration. Recently we obtained evidence that in the human colorectal adenocarcinoma Caco-2 cells, exogenous PTHrP increases the proliferation and positively modulates cell cycle progression via ERK1/2, p38 MAPK and PI3K. The purpose of this study was to explore if the serine/threonine kinase RSK, which is involved in the progress of many cancers and it is emerging as a potential therapeutic target, mediates PTHrP effects on cancer colon cells...
April 6, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28374221/less-is-more-time-to-expand-the-indications-for-minimally-invasive-video-assisted-parathyroidectomy
#13
S Bakkar, V Matteucci, C Corsini, S Pagliaro, P Miccoli
PURPOSE: Minimally invasive video-assisted parathyroidectomy (MIVAP) is one of the most widespread targeted parathyroid surgeries for primary hyperparathyroidism (PHP). The aim of this study was to assess its limits and propose an expansion of its indications in the management of parathyroid pathology. METHODS: A retrospective analysis of 77 consecutive patients who underwent MIVAP for PHP between Jan and Oct 2016 was conducted. The adequacy of the procedure and/or the need to convert to a standard cervicotomy was the main outcome of interest...
April 3, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28362521/a-nationwide-study-on-parathyroid-carcinoma
#14
Eeva M Ryhänen, Helena Leijon, Saara Metso, Eija Eloranta, Pirkko Korsoff, Petteri Ahtiainen, Päivi Kekäläinen, Marjo Tamminen, Raija Ristamäki, Otto Knutar, Eliisa Löyttyniemi, Leo Niskanen, Mika Väisänen, Ilkka Heiskanen, Matti J Välimäki, Markku Laakso, Caj Haglund, Johanna Arola, Camilla Schalin-Jäntti
BACKGROUND: Parathyroid carcinoma (PC) is rare and diagnostically challenging. Reported outcomes are rather poor and the incidence might be increasing. MATERIAL AND METHODS: We performed a nationwide study on all cases (n= 32) diagnosed in 2000-2011 in Finland, and compared clinical and histopathological characteristics and outcome to atypical parathyroid (APA; n= 28) and parathyroid adenomas (PA; n= 72). The incidence in years 1955-1999 was compared to that in 2000-2013...
March 31, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28362510/apoptosis-in-primary-hyperparathyroidism
#15
Oliwia Anna Segiet, Łukasz Mielańczyk, Adam Piecuch, Marek Michalski, Szczepan Tyczyński, Marlena Brzozowa-Zasada, Mariusz Deska, Romuald Wojnicz
Primary hyperparathyroidism (PHPT) is defined by inappropriate elevation of parathormone, caused by parathyroid hyperplasia, also known as multi-gland disease (MGD), parathyroid adenoma (PA), or parathyroid carcinoma (PC). Although several studies have already been conducted, there is a lack of a definite diagnostic marker, which could unambiguously distinguish MGD from PA or PC. The accurate and prompt diagnosis has the key meaning for effective treatment and follow-up. This review paper presents the role of apoptosis in PHPT...
March 31, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28352668/genomic-profiling-reveals-mutational-landscape-in-parathyroid-carcinomas
#16
Chetanya Pandya, Andrew V Uzilov, Justin Bellizzi, Chun Yee Lau, Aye S Moe, Maya Strahl, Wissam Hamou, Leah C Newman, Marc Y Fink, Yevgeniy Antipin, Willie Yu, Mark Stevenson, Branca M Cavaco, Bin T Teh, Rajesh V Thakker, Hans Morreau, Eric E Schadt, Robert Sebra, Shuyu D Li, Andrew Arnold, Rong Chen
Parathyroid carcinoma (PC) is an extremely rare malignancy lacking effective therapeutic intervention. We generated and analyzed whole-exome sequencing data from 17 patients to identify somatic and germline genetic alterations. A panel of selected genes was sequenced in a 7-tumor expansion cohort. We show that 47% (8 of 17) of the tumors harbor somatic mutations in the CDC73 tumor suppressor, with germline inactivating variants in 4 of the 8 patients. The PI3K/AKT/mTOR pathway was altered in 21% of the 24 cases, revealing a major oncogenic pathway in PC...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28342003/lung-carcinoma-progression-and-survival-versus-amino-and-carboxyl-parathyroid-hormone-related-protein-expression
#17
Randolph H Hastings, Philippe R Montgrain, Rick A Quintana, Boris Chobrutskiy, Ashkhan Davani, Atsushi Miyanohara, Sepi Mahooti
PURPOSE: Expression of the carboxyl PTHrP region of parathyroid hormone-related protein (PTHrP) is a positive prognostic indicator in women with lung cancer, but amino PTHrP is a negative indicator in other lung cancer patients. This project investigated whether PTHrP could be expressed as predominantly amino PTHrP or carboxyl PTHrP in individual lung carcinomas. It also assessed domain-specific effects on cancer progression and patient survival. METHODS: PTHrP immunoreactivities were analyzed versus survival in a human lung cancer tissue microarray (TMA)...
March 25, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28334546/-parathyroid-cancer
#18
Ivana Ságová, Matej Stančík, Peter Kentoš, Dušan Pavai, Daniela Kantárová, Anton Vaňuga, Peter Vaňuga
Parathyroid cancer is a rare endocrine malignancy, representing less than 1 % of all cases of primary hyperparathyroidism. The exact etiology of the disease remains unknown. Known risk factors include neck irradiation, end stage renal failure, genetic factors, particularly the the HPRT2/CDCT73 gene mutation. The clinical picture is often indolent, yet progressive with a trend of local invasion and metastasis formation in advanced disease. The clinical picture includes symptoms of severe and resistant hypercalcemia, requiring intensive therapy often with the need of dialysis...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28288139/mice-deleted-for-cell-division-cycle-73-gene-develop-parathyroid-and-uterine-tumours-model-for-the-hyperparathyroidism-jaw-tumour-syndrome
#19
G V Walls, M Stevenson, K E Lines, P J Newey, A A C Reed, M R Bowl, J Jeyabalan, B Harding, K J Bradley, S Manek, J Chen, P Wang, B O Williams, B T Teh, R V Thakker
The hyperparathyroidism-jaw tumour (HPT-JT) syndrome is an autosomal dominant disorder characterized by occurrence of parathyroid tumours, often atypical adenomas and carcinomas, ossifying jaw fibromas, renal tumours and uterine benign and malignant neoplasms. HPT-JT is caused by mutations of the cell division cycle 73 (CDC73) gene, located on chromosome 1q31.2 and encodes a 531 amino acid protein, parafibromin. To facilitate in vivo studies of Cdc73 in tumourigenesis we generated conventional (Cdc73(+/-)) and conditional parathyroid-specific (Cdc73(+/L)/PTH-Cre and Cdc73(L/L)/PTH-Cre) mouse models...
March 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28266288/parathyroid-adenomas-in-adults-and-adolescents-critical-appraisal-and-surgical-strategy-in-18-cases
#20
Mihai Radu Diaconescu, Ioan Costea, Mihai Glod, Radu Terinte, Smaranda Diaconescu
Background: Our study underline scarcity of isolated case reports or small case series of parathyroid adenoma (PA) published in autochthonous medical literature,their variable clinical expression among the "historic" varieties but also the diagnostic difficulties and delays of diagnosis as well consecration of surgery as the golden therapeutic standard of this disorder. PATIENTS AND METHOD: Demographic, clinical presentations, laboratory and imaging data, operative findings and procedures together with pathology account and outcome from the case reports of 18 patients with documented PHP were retrospectively analyzed...
January 2017: Chirurgia
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