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Endocrine Pathology

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https://www.readbyqxmd.com/read/28332062/diagnosis-and-treatment-of-metastases-to-the-thyroid-gland-a-meta-analysis
#1
REVIEW
Patrizia Straccia, Claudia Mosseri, Chiara Brunelli, Esther Diana Rossi, Celestino Pio Lombardi, Alfredo Pontecorvi, Guido Fadda
The thyroid is a rare site of clinically detectable tumor metastases; even though the gland is a highly vascularized structure, the frequency of metastases in the routine practice is less than 0.2% of all thyroid malignancies. The purpose of our meta-analysis is to evaluate the frequency of metastatic diffusion from other primary tumors to the thyroid gland and to suggest the best possible treatment through an evidence-based study. Relevant studies were identified by searching the following databases: PubMed, Scopus, and Web of Science...
March 22, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28284009/pituitary-carcinoma-in-a-patient-with-an-sdhb-mutation
#2
Nicola Tufton, Federico Roncaroli, Irene Hadjidemetriou, Mary N Dang, Judit Dénes, Leonardo Guasti, Maria Thom, Michael Powell, Stephanie E Baldeweg, Naomi Fersht, Márta Korbonits
We present the first case of pituitary carcinoma occurring in a patient with a succinate dehydrogenase subunit B (SDHB) mutation and history of paraganglioma. She was initially treated for a glomus tumour with external beam radiotherapy. Twenty-five years later, she was diagnosed with a non-functioning pituitary adenoma, having developed bitemporal hemianopia. Recurrence of the pituitary lesion (Ki-67 10% and p53 overexpressed) occurred 5 years after her transsphenoidal surgery, for which she underwent two further operations followed by radiotherapy...
March 10, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28271381/tissue-expression-and-pharmacological-in-vitro-analyses-of-mtor-and-sstr-pathways-in-adrenocortical-carcinoma
#3
Antonina Germano, Ida Rapa, Eleonora Duregon, Arianna Votta, Jessica Giorcelli, Consuelo Buttigliero, Giorgio V Scagliotti, Marco Volante, Massimo Terzolo, Mauro Papotti
New therapies for advanced adrenocortical carcinoma (ACC) are urgently needed, as the majority of the patients experience a rapid and inexorable progression despite surgery and adjuvant mitotane. In vitro data suggest that somatostatin receptors (SSTRs) and mTOR pathway might represent reasonable targets for novel therapies, being involved in functionality and growth of ACC cells. However, in vitro analysis of combination treatments targeting both mTOR and SSTR as compared to mitotane are poorly explored in ACC...
March 7, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28271380/the-flip-side-of-niftp-an-increase-in-rates-of-unfavorable-histologic-parameters-in-the-remainder-of-papillary-thyroid-carcinomas
#4
Kristine S Wong, Kyle C Strickland, Trevor E Angell, Matthew A Nehs, Erik K Alexander, Edmund S Cibas, Jeffrey F Krane, Brooke E Howitt, Justine A Barletta
The term noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) was recently proposed to replace noninvasive follicular variant of papillary thyroid carcinoma (FVPTC) both to promote more conservative management of these tumors and spare patients the psychological burden of a cancer diagnosis. This reclassification will lower the incidence of papillary thyroid carcinoma (PTC). In addition, it could result in an increase in the rates of unfavorable histologic prognosticators for PTC overall because NIFTPs had previously accounted for many of the PTCs without these features...
March 7, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28258518/adrenocortical-carcinoma-arising-in-an-adrenal-rest-a-case-report-and-review-of-the-literature
#5
Kristine M Cornejo, Henrietta A Afari, Peter M Sadow
Carcinomas arising from embryonic adrenal rests are rare with only a handful of reported cases. We report a case of an adrenocortical carcinoma arising from an adrenal rest located between the bladder and prostate in a 51 year-old man. The patient presented following a year of rectal pain and constipation. Computed tomography (CT) scan revealed a 9 cm pelvic mass that appeared to arise from the soft tissue between the bladder and prostate, with displacement of the organs and narrowing of the rectal lumen, suspected to be a sarcoma...
March 3, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28176151/frequent-braf-v600e-and-absence-of-tert-promoter-mutations-characterize-sporadic-pediatric-papillary-thyroid-carcinomas-in-japan
#6
Naoki Oishi, Tetsuo Kondo, Tadao Nakazawa, Kunio Mochizuki, Tomohiro Inoue, Kazunari Kasai, Ippei Tahara, Tomonori Yabuta, Mitsuyoshi Hirokawa, Akira Miyauchi, Ryohei Katoh
Pediatric papillary thyroid carcinoma (PTC) has unique features but requires further genetic investigation. Moreover, there has been increasing concern about the risk for pediatric PTC in Japan after the Fukushima accident. This study aims to evaluate the frequencies of BRAF and TERT promoter mutations and to examine their significance in non-radiation-associated pediatric PTCs in Japan. We enrolled 81 pediatric PTC patients aged ≤20 years. The control group included 91 adult PTCs from patients >20 years old...
February 7, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28102527/teratoma-of-the-sellar-region-a-case-report
#7
Wolfgang Saeger, Azadeh Ebrahimi, Rudi Beschorner, Hildegard Spital, Jürgen Honegger, Waldemar Wilczak
The case report describes a teratoma of the sellar region with a gland forming and an immature, relatively clear undifferentiated component without signs of anaplasia. Both components express TTF-1 indicating their presumable origin in the neurohypophysis as part of the circumventricular organs. The differential diagnosis includes pituitary adenoma and spindle cell oncocytoma with inclusion of Rathke's cleft cyst, pituitary blastoma, yolk sac tumor, and other germ cell tumors. The prognosis is the same as in the immature teratomas in the gonads, specifically unclear...
January 19, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28091891/adrenal-teratoma-a-case-series-and-review-of-the-literature
#8
Eric J Kuo, Anthony E Sisk, Zhiming Yang, Jiaoti Huang, Michael W Yeh, Masha J Livhits
Adrenal teratomas are rare neoplasms and there is limited data on their surgical outcomes and long-term prognosis. We aimed to review our institutional experience and compare this to the existing literature on adrenal teratomas in adults and children. An institutional pathology database was searched for cases of adrenal teratoma (June 1956-July 2016). Clinical and imaging data were abstracted from the medical records and pathology slides were obtained for review. In addition, a PubMed search for "adrenal teratoma" from June 1952 to July 2016 was performed to identify reports of primary adrenal teratoma in patients of all ages...
January 14, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28084610/immunoglobulin-g4-igg4-related-hypophysitis
#9
Fabio Rotondo, Amro Qaddoura, Luis V Syro, Jason Karamchandani, David G Munoz, Mariam J Arroyave, William P Ospina, Michael D Cusimano, Kalman Kovacs
We report two different cases of IgG4-related hypophysitis. In the first case, a pituitary lesion was accompanied by lymphocytic meningitis possibly mimicking tuberculous meningitis. The second case was unassociated with involvement of other organs. No histologic differences were noted between the two cases indicating that the morphologic features of the hypophysial lesion do not depend on the presence of other lesions. The pathogenesis of IgG4 hypophysitis is not known, and further study is necessary to explore the cause, progression, and influencing factors of this disease...
January 13, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28132171/endocrine-pathology-society-hubert-wolfe-award-for-2016-call-for-nominations
#10
(no author information available yet)
No abstract text is available yet for this article.
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28120170/xanthomatous-hypophysitis-is-associated-with-ruptured-rathke-s-cleft-cyst
#11
Kai Duan, Sylvia L Asa, Daniel Winer, Zadeh Gelareh, Fred Gentili, Ozgur Mete
Xanthomatous hypophysitis is a rare inflammatory disease of the pituitary gland that can mimic a neoplastic lesion clinically and radiologically. Its pathogenesis remains largely unknown, although recent evidence suggests that pituitary inflammation may occur as a secondary reaction to mucous content released from a ruptured cyst. In a series of 1221 pituitary specimens, we identified seven cases of xanthomatous hypophysitis. Six patients had complete radiological and biochemical workup preoperatively: a cystic-appearing pituitary mass was identified in all six patients (100%) with a mean size of 2...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28116635/a-somatic-hif2%C3%AE-mutation-induced-multiple-and-recurrent-pheochromocytoma-paraganglioma-with-polycythemia-clinical-study-with-literature-review
#12
REVIEW
Qiuli Liu, Yan Wang, Dali Tong, Gaolei Liu, Wenqiang Yuan, Jun Zhang, Jin Ye, Yao Zhang, Gang Yuan, Qingxing Feng, Dianzheng Zhang, Jun Jiang
A syndrome known as pheochromocytomas (PCC)/paragangliomas (PGL) and polycythemia resulted from gain-of-function mutation of hypoxia-inducible factor 2α (HIF2α) has been reported recently. However, clinical features of this syndrome vary from patient to patient. In our study, we described the clinical features of the patient within 15-year follow-up with a literature review. The patient presented with "red face" since childhood and was diagnosed with polycythemia and pheochromocytoma in 2000, and then, tumor was removed at his age of 27 (year 2000)...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28078619/pancreatic-struma-with-papillary-thyroid-carcinoma-a-diagnostic-dilemma
#13
Jerry Liu, Michael J Marcaccio, J E M Young, Tariq Aziz, Josephine Wat, Sylvia L Asa
No abstract text is available yet for this article.
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28078618/decreased-tap63-and-%C3%AE-np63-mrna-levels-in-most-human-pituitary-adenomas-are-correlated-with-notch3-jagged1-relative-expression
#14
Lisiane Cervieri Mezzomo, Frederico Giacomoni Pesce, Josenel Maria Barcelos Marçal, Taiana Haag, Nelson Pires Ferreira, Julia Fernanda Semmelmann Pereira Lima, Carolina Garcia Soares Leães, Miriam Costa Oliveira, Maria Beatriz da Fonte Kohek
Despite recent advances in molecular genetics, the pituitary adenoma initiation, development, progress, and the molecular basis of their unique features are still poorly understood. In this sense, it is proposed that stem cell could be involved in pituitary adenoma tumorigenesis. It is suggested that TP63 has important functions in stem cells, and it may have interplay of TP63 and Notch and its ligand Jagged in this process. This study aimed to evaluate the distinct expression of TP63 isoforms (TAp63 and ΔNp63), as well as its correlation with Notch3 receptor and its ligand Jagged1 in human pituitary adenomas at the messenger RNA (mRNA) level...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28064410/detecting-n-ras-q61r-mutated-thyroid-neoplasias-by-immunohistochemistry
#15
A Crescenzi, F Fulciniti, M Bongiovanni, L Giovanella, Pierpaolo Trimboli
Recently, the immunohistochemistry (IHC) for N-RAS Q61R has been developed and commercialized for clinical practice. Here, we investigated the reliability of IHC to identify N-RAS Q61R mutated thyroid neoplasia. A series of 24 consecutive thyroid lesions undergone surgery following indeterminate cytology were enrolled. Paraffin sections were stained for IHC using the rabbit monoclonal anti-human N-RAS Q61R, clone SP174. N-RAS mutations in codon 61 were also investigated by automated sequencing. At histology, 12 cases of follicular carcinoma, cytologically defined as follicular lesions, 1 papillary cancer, 7 follicular adenomas, and 4 hyperplastic nodules were found...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/27873160/prognostic-significance-of-cd44-and-orthopedia-homeobox-protein-otp-expression-in-pulmonary-carcinoid-tumours
#16
George Papaxoinis, Daisuke Nonaka, Ciara O'Brien, Benjamin Sanderson, Piotr Krysiak, Wasat Mansoor
CD44 and orthopedia homeobox protein (OTP) expressions have shown to be predictive of overall survival in pulmonary carcinoid (PC) tumours. The scope of the present study was to validate their role in PC patients and investigate potential application in clinical practice. Data was collected from patients presenting to a tertiary cancer centre diagnosed with PC between 2003 and 2015. Diagnosis was confirmed by central pathology review. Formalin-fixed paraffin-embedded (FFPE) tissue samples collected at diagnosis were scored using immunohistochemistry (H score) for standard CD44 and nuclear and cytoplasmic OTP protein expression...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/27771834/familial-papillary-thyroid-carcinoma-fptc-a-retrospective-analysis-in-a-sample-of-the-bulgarian-population-for-a-10-year-period
#17
Kalin Vidinov, Dragomira Nikolova
In recent years, there are numerous reports indicating the presence of familial papillary carcinoma. Unfortunately, no genetic defect can be linked directly to the disease. In this study, we set the goal to make a retrospective analysis of the cases with papillary carcinoma in the Department of Endocrine Surgery for the past 10 years, to compare the characteristics of sporadic and familial forms of the disease and to find families with hereditary papillary carcinoma. The study included 810 patients treated for thyroid cancer in the Department of Endocrine Surgery, USBALE "Acad...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/27743246/dopamine-secreting-paraganglioma-in-the-retroperitoneum
#18
Yusuke Matsuda, Noriko Kimura, Takanobu Yoshimoto, Yoshihiro Sekiguchi, Junzo Tomoishi, Ichiro Kasahara, Yoshihito Hara, Yoshihiro Ogawa
Pheochromocytomas and paragangliomas, which exclusively produce dopamine, are very rare. Herein, we report for the first time a Japanese case of an exclusively dopamine-producing paraganglioma accompanied by detailed immunohistochemical analyses. A 70-year-old Japanese woman was referred to our hospital for functional examination of her left retroperitoneal mass. Her adrenal functions were normal, except for excessive dopamine secretion. After the tumorectomy, her dopamine level normalized. The histopathological diagnosis of the tumor was paraganglioma; this was confirmed by positive immunostaining of chromogranin A (CgA), tyrosine hydroxylase (TH), dopamine β-hydroxylase (DBH), and succinate dehydrogenase gene subunit B (SDHB)...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/27709415/pathology-of-human-pheochromocytoma-and-paraganglioma-xenografts-in-nsg-mice
#19
James F Powers, Karel Pacak, Arthur S Tischler
A major impediment to the development of effective treatments for metastatic or unresectable pheochromocytomas and paragangliomas has been the absence of valid models for pre-clinical testing. Attempts to establish cell lines or xenografts from human pheochromocytomas and paragangliomas have previously been unsuccessful. NOD-scid gamma (NSG) mice are a recently developed strain lacking functional B-cells, T-cells, and NK cells. We report here that xenografts of primary human paragangliomas will take in NSG mice while maintaining their architectural and immunophenotypic characteristics as expressed in the patients...
March 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/27704398/the-ret-e616q-variant-is-a-gain-of-function-mutation-present-in-a-family-with-features-of-multiple-endocrine-neoplasia-2a
#20
William Grey, Rosaline Hulse, Anna Yakovleva, Dilyana Genkova, Benjamin Whitelaw, Ellen Solomon, Salvador J Diaz-Cano, Louise Izatt
The REarranged during Transfection (RET) proto-oncogene is a receptor tyrosine kinase involved in growth and differentiation during embryogenesis and maintenance of the urogenital and nervous systems in mammals. Distinct mutations across hotspot RET exons can cause Multiple Endocrine Neoplasia Type 2A (MEN2A) characterised by development of medullary thyroid cancer (MTC), phaeochromocytoma (PCC) and primary hyperparathyroidism (PHPT), with a strong correlation between genotype and phenotype. Here, we report a 42-year-old man presented in the clinic with a unilateral PCC, with subsequent investigations revealing a nodular and cystic thyroid gland...
March 2017: Endocrine Pathology
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