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Parathyroid carcinoma

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https://www.readbyqxmd.com/read/29348307/non-mammalian-models-of-multiple-endocrine-neoplasia-type-2
#1
REVIEW
Tirtha K Das, Ross L Cagan
Twenty-five years ago, RET was identified as the primary driver of multiple endocrine neoplasia type 2 (MEN2) syndrome. MEN2 is characterized by several transformation events including pheochromocytoma, parathyroid adenoma and, especially penetrant, medullary thyroid carcinoma (MTC). Overall, MTC is a rare but aggressive type of thyroid cancer for which no effective treatment currently exists. Surgery, radiation, radioisotope treatment and chemotherapeutics have all shown limited success, and none of these approaches have proven durable in advanced disease...
February 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29345728/analytical-performance-of-the-thyroseq-v3-genomic-classifier-for-cancer-diagnosis-in-thyroid-nodules
#2
Marina N Nikiforova, Stephanie Mercurio, Abigail I Wald, Michelle Barbi de Moura, Keith Callenberg, Lucas Santana-Santos, William E Gooding, Linwah Yip, Robert L Ferris, Yuri E Nikiforov
BACKGROUND: Molecular tests have clinical utility for thyroid nodules with indeterminate fine-needle aspiration (FNA) cytology, although their performance requires further improvement. This study evaluated the analytical performance of the newly created ThyroSeq v3 test. METHODS: ThyroSeq v3 is a DNA- and RNA-based next-generation sequencing assay that analyzes 112 genes for a variety of genetic alterations, including point mutations, insertions/deletions, gene fusions, copy number alterations, and abnormal gene expression, and it uses a genomic classifier (GC) to separate malignant lesions from benign lesions...
January 18, 2018: Cancer
https://www.readbyqxmd.com/read/29344163/clinical-characteristics-and-treatment-outcomes-of-parathyroid-carcinoma-a-retrospective-review-of-234-cases
#3
Peisong Wang, Shuai Xue, Shuo Wang, Zhi Lv, Xianying Meng, Guimin Wang, Wei Meng, Jia Liu, Guang Chen
Parathyroid carcinoma (PC) is one of the rarest known types of cancer and has a moderate prognosis, with estimated 5- and 10-year overall survival rates between 78-85% and between 49-70%, respectively. To raise awareness of this disease, and to optimize its diagnosis, clinical management and prognosis, the present study retrospectively reviewed 234 cases of PC. A total of 226 cases of PC, which were archived between 1984 and 2015 in the three major databases of the Chinese population, were retrieved and pooled with the 8 cases diagnosed and treated at the Department of Thyroid Surgery of The First Hospital of Jilin University (Changchun, China) between June 2008 and December 2015...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29330338/diagnosis-management-histology-and-genetics-of-sporadic-primary-hyperparathyroidism-old-knowledge-with-new-tricks
#4
Maria Mizamtsidi, Constantinos Nastos, George Mastorakos, Roberto Dina, Ioannis Vassiliou, Maria Gazouli, Fausto Palazzo
Primary hyperparathyroidism (pHPT) is a common endocrinopathy resulting from inappropriately high PTH secretion. It usually results from the presence of a single gland adenoma, multiple gland hyperplasia or rarely parathyroid carcinoma. All these conditions require different management and it is important to be able to differentiate the underlined pathology, in order for the clinicians to provide the best therapeutic approach. Elucidation of the genetic background of each of these clinical entities would be of great interest...
January 12, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29324469/parafibromin-deficient-hpt-jt-type-cdc73-mutated-parathyroid-tumors-demonstrate-distinctive-morphologic-features
#5
Anthony J Gill, Grace Lim, Veronica K Y Cheung, Juliana Andrici, Joanna L Perry-Keene, Julie Paik, Loretta Sioson, Adele Clarkson, Amy Sheen, Catherine Luxford, Marianne S Elston, Goswin Y Meyer-Rochow, M Teresa Nano, Schelto Kruijff, Anton F Engelsman, Mark Sywak, Stanley B Sidhu, Leigh W Delbridge, Bruce G Robinson, Deborah J Marsh, Christopher W Toon, Angela Chou, Roderick J Clifton-Bligh
The gene CDC73 (previously known as HRPT2) encodes the protein parafibromin. Biallelic mutation of CDC73 is strongly associated with malignancy in parathyroid tumors. Heterozygous germline mutations cause hyperparathyroidism jaw tumor syndrome,which is associated with a high life-time risk of parathyroid carcinoma. Therefore loss of parafibromin expression by immunohistochemistry may triage genetic testing for hyperparathyroidism jaw tumor syndrome and be associated with malignant behavior in atypical parathyroid tumors...
January 10, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29303141/synchronous-parathyroid-adenoma-and-papillary-thyroid-carcinoma-99mtc-mibi-scan-findings
#6
O Kandemir, P Atmaca Kelkit, K Karakuş
Simultaneous existence of parathyroid adenoma and thyroid nonmedullary carcinoma is rarely observed. A 52-year-old female was diagnosed approximately 4 years ago with primary hyperparathyroidism (PHPT) on the basis of hypercalcemia and elevated serum parathyroid hormone (PTH) level. Clinically, PHPT diagnosed patient was examined with Tc-99m MIBI scintigraphy to investigate parathyroid adenoma. Early Tc-99m MIBI images showed focal focused enhanced activity retention on both thyroid left lobe upper pole and thyroid lower pole inferior neighborhood...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29301864/effect-of-autotransplantation-of-a-parathyroid-gland-on-hypoparathyroidism-after-total-thyroidectomy
#7
Anping Su, Yanping Gong, Wenshuang Wu, Rixiang Gong, Zhihui Li, Jingqiang Zhu
BACKGROUND: The effect of parathyroid autotransplantation on hypoparathyroidism is not fully understood. The purpose of the study was to determine the effect of autotransplantation of a parathyroid gland on the incidence of hypoparathyroidism and recovery of parathyroid function at 6 months after total thyroidectomy with central neck dissection for papillary thyroid carcinoma. METHODS: All patients with autotransplantation of a parathyroid gland (no inadvertent parathyroidectomy) (group A), in situ preservation of all parathyroid glands (no autotransplantation and inadvertent parathyroidectomy) (group B), or inadvertent removal of a parathyroid gland (no autotransplantation) (group C) who underwent first-time total thyroidectomy with central neck dissection for papillary thyroid carcinoma between January 2013 and June 2016 were included retrospectively...
January 4, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29280705/non-functioning-parathyroid-cystic-tumour-malignant-or-not-report-of-a-case
#8
G Cocorullo, G Scerrino, G Melfa, C Raspanti, G Rotolo, V Mannino, P Richiusa, D Cabibi, A G Giannone, C Porrello, G Gulotta
Parathyroid carcinoma (PC) is a very rare endocrine tumour, usually characterized by symptoms such as a neck mass, dysphonia, severe hypercalcemia exceeding 140 mg/L and elevated serum parathyroid hormone levels, even more than 5 times the upper limit of normal. Non-functioning parathyroid cancer is extremely rare and, in this case, its pre-operative diagnosis is often difficult. A 54-year old female patient, referring dysphagia and dysphonia, underwent neck ultrasound and neck CT. A left thyroid nodule, probably cystic, was found...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29278884/decreased-expression-of-pth1r-is-a-poor-prognosis-in-hepatocellular-carcinoma
#9
Hui-Ju Wang, Liang Wang, Shu-Shu Song, Xiang-Lei He, Hong-Ying Pan, Zhi-Ming Hu, Xiao-Zhou Mou
BACKGROUND AND AIM: Hypercalcemia is a potentially fatal and not rare complication of hepatocellular carcinoma (HCC), and its underlying mechanism remains unclear. Parathyroid hormone (PTH) is the most important regulator of the concentrations of calcium and phosphate in blood; parathyroid hormone-related protein (PTHrP) was the most frequent cause of humoral hypercalcemia of malignancy; parathyroid hormone 1 receptor (PTH1R) is the common receptor for PTH and PTHrP. The aim of this study is to investigate the expression of PTH, PTHrP, and PTH1R in HCC tissues, and their relationship with clinical pathological characters in HCC...
December 15, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29260127/an-unusual-cause-of-hypercalcemic-crisis-water-clear-cell-double-parathyroid-adenoma
#10
Fatih Mehmet Yazar, Mustafa Karaağaç, Ali İşler, Ertan Bülbüloğlu, Fikret Ezberci
Objective: To evaluate the clinical characteristics of a patient operated for water-clear cell adenoma and to discuss these in the light of relevant literature. Material and Methods: PubMed and Google Scholar were searched to identify articles related to water-clear cell adenoma using the following keywords: parathyroid tissue, parathyroid gland, parathyroid cells, parathyroid adenoma, parathyroid hyperplasia, water-clear-cell, and water clear cell. The search included case reports, review articles, and original articles that had been published between January 1990 and November 2014 without any restrictions on language...
2017: Turkish Journal of Surgery
https://www.readbyqxmd.com/read/29259965/clinical-characteristics-causes-and-survival-in-115-cancer-patients-with-parathyroid-hormone-related-protein-mediated-hypercalcemia
#11
Joon Jin, Jin Ook Chung, Min Young Chung, Dong Hyeok Cho, Dong Jin Chung
Background: The aim of this study is to determine the proportion of cancers presenting with parathyroid hormone (PTH) related protein (PTHrP)-mediated hypercalcemia, examine the clinical and biochemical characteristics, identify predictive factors for survival. And we also compared those characteristics between solid organ and hematologic malignancy groups. Methods: Cancer patients with PTHrP-mediated hypercalcemia who were treated at Chonnam National University Hospital in Korea from January 2005 to January 2015 were retrospectively reviewed...
November 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/29239035/heritable-forms-of-primary-hyperparathyroidism-a-current-perspective
#12
REVIEW
Ronald A DeLellis, Shamlal Mangray
Primary hyperparathyroidism (PHPT) is one of the most common of all endocrine disorders encountered by the practising histopathologist. The vast majority of lesions are sporadic in nature, approximately 85% of which are parathyroid adenomas, while hyperplasia and carcinoma account for 10-15% and fewer than 1%, of cases, respectively. Heritable forms of PHPT are much less common and present challenges both to clinicians and pathologists, particularly when they are the presenting feature of an endocrine syndrome...
January 2018: Histopathology
https://www.readbyqxmd.com/read/29225207/parathyroid-carcinoma-occurred-in-two-glands-in-multiple-endocrine-neoplasia-1-a-report-on-a-rare-case
#13
Yoko Omi, Kiyomi Horiuchi, Kento Haniu, Momoko Tokura, Erin Nagai, Osamu Isozaki, Yoji Nagashima, Takahiro Okamoto
Primary hyperparathyroidism is the most common hormonal manifestation associated with multiple endocrine neoplasia 1 (MEN1). It is generally caused by parathyroid hyperplasia, and parathyroid carcinoma is rare. Here, we report a case of MEN1 with parathyroid carcinoma in two parathyroid glands causing primary hyperparathyroidism. A 40-year-old man with primary hyperparathyroidism due to MEN1 underwent a total parathyroidectomy. His corrected calcium and intact PTH (i-PTH) serum levels were 10.8 mg/dL and 203 pg/mL, respectively...
December 8, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29198075/characteristics-management-and-outcome-of-primary-hyperparathyroidism-at-a-single-clinical-center-from-2005-to-2016
#14
B Sun, B Guo, B Wu, J Kang, X Deng, Z Zhang, Y Fan
This study presents the clinical and biochemical profiles of patients with PHPT between 2005 and 2016 at our center. Most PHPT patients in China show symptomatic features. The number of symptomatic and asymptomatic patients increased during that time, and the number of individuals with parathyroid carcinoma is now increasing. INTRODUCTION: Over the last decade, the prevalence of primary hyperparathyroidism (PHPT) has increased sharply, and the number of individuals with parathyroid cancer is still trending upward...
December 3, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29193813/a-case-report-of-brown-tumor-in-a-patient-with-chronic-renal-failure-and-renal-cell-carcinoma
#15
Yong-Jun Liu, Elizabeth E Frauenhoffer, Eric Walker, Nicole C Williams
We report a case of a 72 year old male with hyperparathyroidism secondary to end stage diabetic renal disease and coexisting bilateral chromophobe renal cell carcinomas. The patient presented with back and groin pain, right pelvic hemorrhage, and multiple lytic bone lesions concerning for metastatic renal cell carcinoma. Fine needle aspiration cytology demonstrated benign appearing osteoclasts and spindled cells. A concurrent core biopsy showed foci of spindled cell proliferation populated by osteoclast-like giant cells with stromal hemorrhage without evidence of metastatic carcinoma...
November 29, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29189860/-false-negative-spect-parathyroid-scintigraphy-with-sestamibi-in-patients-with-primary-hyperparathyroidism
#16
Gabriela Paillahueque, Teresa Massardo, Marcela Barberán, Gerson Ocares, Iván Gallegos, Luis Toro, A Verónica Araya
BACKGROUND: 99mTc-sestamibi parathyroid SPECT scintigraphy is a useful tool in the pre-operative study of hyperparathyroidism. False negatives (FN) have been reported in 5.7-14% of the examinations. AIM: To characterize 99mTc-sestamibi FN in cases referred for primary hyperparathyroidism (PHP) to a university hospital. MATERIAL AND METHODS: Descriptive retrospective analysis. We included patients with PHP, studied with SPECT scintigraphy, operated at our center between 2008 and 2015...
August 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29170170/twist-on-a-classic-vitamin-d-and-hypercalcaemia-of-malignancy
#17
Juan C Osorio, Masha G Jones, Nina Schatz-Siemers, Stephanie J Tang
Malignancy is the most common cause of hypercalcaemia in the inpatient setting. Most cases are caused by tumour production of parathyroid hormone-related protein and osseous metastases. In less than 1% of cases, hypercalcaemia is driven by increased production of 1,25-dihydroxyvitamin D (1,25(OH)2D), a mechanism most commonly seen in haematological malignancies. Here, we describe a woman with metastatic small cell cervical carcinoma who developed hypercalcaemia secondary to paraneoplastic overproduction of 1,25(OH)2D, a finding that, to our knowledge, has not been previously associated with this cancer...
November 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29158936/smarca4-deficient-carcinoma-of-unknown-primary-presenting-with-fatal-paraneoplastic-hypercalcemia-in-a-heart-transplant-recipient-first-report-in-a-male-patient
#18
Abbas Agaimy, Deike Strobel, Thomas Strecker
Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT), is a rare SMARCA4-driven aggressive malignancy of young age characteristically associated with paraneoplastic hypercalcemia. Comparable neoplasms/presentations have not been reported in males. A 39-year-old male heart transplant recipient (HTX 40 months previously) presented with multiple liver nodules and hypercalcemic crisis. The serum parathyroid hormone-related protein (PTHrp) was significantly elevated (241 pg/ml; reference value < 57)...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/29142834/two-stage-thyroidectomy-in-the-era-of-intraoperative-neuromonitoring
#19
Christos Christoforides, Ioannis Papandrikos, Georgios Polyzois, Nikolaos Roukounakis, Gianlorenzo Dionigi, Kyriakos Vamvakidis
Background: The use of intraoperative neuromonitoring (IONM) provides surgeons with real time information about recurrent laryngeal nerves (RLN) functional integrity. Hence, allowing them to modify the initially scheduled bilateral procedure, to a two-stage thyroidectomy in cases of loss of signal (LOS) on the first side of resection resulting in minimization of bilateral RLN injury. The purpose of our study was to present our results since the implementation of the above mentioned process in both malignant and benign thyroid disease...
October 2017: Gland Surgery
https://www.readbyqxmd.com/read/29121993/transcriptomic-analyses-reveal-the-underlying-pro-malignant-functions-of-pthr1-for-osteosarcoma-via-activation-of-wnt-and-angiogenesis-pathways
#20
Shenglong Li, Yujin Dong, Ke Wang, Zhe Wang, Xiaojing Zhang
BACKGROUND: Increasing evidence has indicated parathyroid hormone type 1 receptor (PTHR1) plays important roles for the development and progression of osteosarcoma (OS). However, its function mechanisms remain unclear. The goal of this study was to further illuminate the roles of PTHR1 in OS using microarray data. METHODS: Microarray data were available from the Gene Expression Omnibus database under the accession number GSE46861, including six tumors from mice with PTHR1 knockdown (PTHR1...
November 9, 2017: Journal of Orthopaedic Surgery and Research
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