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Medullary thyroid carcinoma

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https://www.readbyqxmd.com/read/27904849/medullary-thyroid-carcinoma-a-30-year-experience-at-one-institution-in-korea
#1
Cho Rok Lee, Sohee Lee, Haiyoung Son, Eunjeong Ban, Sang-Wook Kang, Jandee Lee, Jong Ju Jeong, Kee-Hyun Nam, Woong Youn Chung, Cheong Soo Park
PURPOSE: The objective of this study was to review the clinical outcome and prognosis of patients with sporadic and hereditary medullary thyroid cancer (MTC) who were treated at a single tertiary hospital in Korea. METHODS: We retrospectively reviewed the case files of 85 patients treated from August 1982 to February 2012. RESULTS: In all, 65 patients (76.5%) had sporadic MTC and 20 patients (23.5%) had hereditary MTC. Patients in the sporadic group were older than in the hereditary group (P < 0...
December 2016: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/27900756/a-rare-case-of-medullary-carcinoma-thyroid-metastasizing-to-bilateral-breast-parenchyma
#2
Aamna Hassan, Maimoona Siddiqui, Sidra Jahangir
Medullary carcinoma of the thyroid (MTC) commonly spreads through the lymphatics to distant sites such as lung, liver and bone. Spread to the breast is rare. We report a case of metastatic MTC which progressed to develop nodal metastases to cer-vical and mediastinal regions, visceral metastases to the liver, lung and ultimately to bilateral breasts. Clinically it is important to distinguish metastatic breast lesions from primary breast cancer as each is managed differently. Both cytological and radio-logical investigations were done followed by excision biopsy...
2016: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/27899191/genetic-predisposition-to-endocrine-tumors-diagnosis-surveillance-and-challenges-in-care
#3
REVIEW
Elisabeth Joye Petr, Tobias Else
Endocrine tumor syndromes, eg, multiple endocrine neoplasia types 1 and 2, were among the first recognized hereditary predisposition syndromes to tumor development. Over time, the number of endocrine tumor syndromes has significantly expanded, eg, with the recent inclusion of hereditary paraganglioma syndromes. Associations of non-endocrine tumors with hereditary endocrine tumor syndromes and endocrine tumors with non-classical endocrine tumor syndromes have emerged. These findings have certainly expanded the scope of care, necessitating a multidisciplinary approach by a team of medical professionals and researchers, integrating shared patient decision-making at every step of surveillance, diagnosis, and treatment...
October 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/27872141/differential-roles-of-ret-isoforms-in-medullary-and-papillary-thyroid-carcinomas
#4
Eric Y Lian, Sarah M Maritan, Jessica G Cockburn, Katayoon Kasaian, Mathieu Jf Crupi, David Hurlbut, Steven Jones, Sam Wiseman, Lois M Mulligan
The RET receptor tyrosine kinase mediates cell proliferation, survival and migration in embryogenesis, and is implicated in transformation and tumour progression in multiple cancers. RET is frequently mutated and constitutively activated in familial and sporadic thyroid carcinomas. As a result of alternative splicing, RET is expressed as two protein isoforms, RET9 and RET51, which differ in their unique C-terminal amino acids. These isoforms have distinct intracellular trafficking and associated signaling complexes, but functional differences are not well defined...
November 21, 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27869424/-study-of-medullary-thyroid-carcinoma-from-a-proband
#5
Laura Morlán Herrador, Antonio de Arriba, Gloria Miguel, Marta Ferrera, José I Labarta
Thyroid cancer is an uncommon type of cancer, accounting less than 1% of all cancers in adults, and 0.5-3% of all cancers in children. There are four different types: papillary carcinoma (80-90% of cases), follicular (5-10%), medullary (5%) and anaplastic cell (2-3%). Eighty per cent of cases of medullary thyroid cancer are sporadic, but 20% are associated with an inherited syndrome that is divided into three groups: multiple endocrine neoplasia type 1, multiple endocrine neoplasia type 2 and familial medullary thyroid carcinoma...
December 1, 2016: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/27864651/all-in-the-family-analyzing-the-impact-of-family-history-in-addition-to-genotype-on-medullary-thyroid-carcinoma-aggressiveness-in-men2a-patients
#6
Kristin L Long, Carol Etzel, Thereasa Rich, Samuel Hyde, Nancy D Perrier, Paul H Graham, Jeffrey E Lee, Mimi I Hu, Gilbert J Cote, Robert Gagel, Elizabeth G Grubbs
Several guidelines for patients with multiple endocrine neoplasia 2A (MEN2A) take into account genotype and family history of medullary thyroid carcinoma (MTC) disease aggressiveness. We sought to determine if an association exists independent of genotype, which could provide important information for counseling MEN2A patients in management of their MTC. Pedigrees of patients with ≥5 family members with MEN2A were retrospectively reviewed. Analysis was performed among kindreds with the most frequently observed codon mutation (RET 634)...
November 18, 2016: Familial Cancer
https://www.readbyqxmd.com/read/27863564/designing-and-developing-pet-based-precision-model-in-thyroid-carcinoma-the-potential-avenues-for-a-personalized-clinical-care
#7
REVIEW
Sandip Basu, Rahul Vithalrao Parghane
This communication enumerates the current uses and potential areas where PET could be clinically utilized for developing "precision medicine" type model in thyroid carcinoma. (1) In routine clinics, PET imaging (with fluorodeoxyglucose [FDG]) is utilized to investigate patients of differentiated thyroid carcinoma (DTC) with high thyroglobulin and negative iodine scintigraphy (TENIS) and in medullary carcinoma thyroid (MCT) when the tumor markers (eg, calcitonin and carcino embryonic antigen [CEA]) are raised postoperatively (PET with FDG, (68)Ga-DOTA-NOC/TATE, FDOPA)...
January 2017: PET Clinics
https://www.readbyqxmd.com/read/27856495/clinical-outcomes-of-a-cohort-of-patients-with-central-nervous-system-metastases-from-thyroid-cancer
#8
Joana Simões-Pereira, Daniel Macedo, Maria João Bugalho
INTRODUCTION: Metastases to central nervous system (M1-CNS) are rarely reported in thyroid cancer (TC) patients. We aimed to characterize patients with M1-CNS from TC followed in our department. METHODS: Review of the medical records of 27 patients with TC-related M1-CNS. RESULTS: Mean age at TC diagnosis was 56.9 ± 19.1 years. Papillary TC (55.6%) was the commonest histological type, followed by poorly differentiated (18.5%), medullary (11...
November 2016: Endocrine Connections
https://www.readbyqxmd.com/read/27855236/vandetanib-induces-a-marked-anti-tumor-effect-and-amelioration-of-ectopic-cushing-s-syndrome-in-a-medullary-thyroid-carcinoma-patient
#9
Hashem Bseiso, Naama Lev-Cohain, David J Gross, Simona Grozinsky-Glasberg
: A 55-year-old woman diagnosed with sporadic MTC underwent total thyroidectomy 20 years ago. After the first surgery, elevated calcitonin levels in parallel with local disease persistence were noted and therefore she underwent repeated neck dissections. During follow-up, multiple foci of metastatic disease were noted in the neck and mediastinal lymph nodes, lungs and bones; however, the disease had an indolent course for a number of years, in parallel with a calcitonin doubling time of more than two years and without significant symptoms...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27852814/spontaneous-proliferative-and-neoplastic-lesions-in-thyroid-and-parathyroid-glands-of-nondomestic-felids
#10
Jenny P Pope, James Steeil, Edward C Ramsay, Danielle Reel, Shelley J Newman
Based on microscopic and immunohistochemical characterization, we documented spontaneous proliferative and neoplastic lesions in the thyroid and parathyroid glands of nondomestic felids. Ten animals (4 leopards, 3 tigers, and 3 cougars), all with a previous diagnosis of thyroid neoplasia were identified from the University of Tennessee College of Veterinary Medicine database. The mean age of affected animals was 15.9 y. Twelve neoplasms were identified; 2 animals had 2 concurrent neoplasms. After immunohistochemical characterization using a panel of chromogranin A, thyroglobulin, and calcitonin, 7 of the former thyroid neoplasms were diagnosed as thyroid adenomas, 1 was diagnosed as a thyroid carcinoma, and 4 were diagnosed as parathyroid adenomas...
November 15, 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27847096/a-cohort-study-on-10-year-survival-of-sporadic-medullary-thyroid-carcinoma-with-somatic-ret-mutation
#11
Li-Lun Chuang, Daw-Yang Hwang, Kun-Bow Tsai, Hon-Man Chan, Feng-Yu Chiang, Pi-Jung Hsiao
Somatic rearranged during transfection (RET) mutations are reported in 40-50% of sporadic medullary thyroid carcinoma (sMTC) patients with prognostic significance. As there is a lack of somatic RET mutations reported previously for the Taiwanese population, we tried to assess the presence of somatic RET mutations and evaluate the potential outcome predictors for our sMTC patients. We collected data from seven sMTC patients from the years 1997 to 2005 and analyzed their clinic-pathological features up to 2015...
November 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27837029/digitalis-like-compounds-facilitate-non-medullary-thyroid-cancer-redifferentiation-through-intracellular-ca2-fos-and-autophagy-dependent-pathways
#12
Marika H Tesselaar, Thomas Crezee, Herman G Swarts, Danny Gerrits, Otto C Boerman, Jan B Koenderink, Hendrik G Stunnenberg, Mihai G Netea, Jan Wa Smit, Romana T Netea-Maier, Theo S Plantinga
Up to 20-30% of patients with metastatic non-medullary thyroid cancer have persistent or recurrent disease resulting from tumour dedifferentiation. Tumour redifferentiation to restore sensitivity to radioactive iodide (RAI) therapy is considered a promising strategy to overcome RAI resistance. Autophagy has emerged as an important mechanism in cancer dedifferentiation. Here, we demonstrate the therapeutic potential of autophagy activators for redifferentiation of thyroid cancer cell lines. Five autophagy activating compounds, all known as digitalis-like compounds, restored hNIS expression and iodide uptake in TC cell lines...
November 11, 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27834132/surgical-management-of-medullary-thyroid-carcinoma-in-pediatric-age
#13
Claudio Spinelli, Leonardo Rossi, Silvia Strambi, Jessica Piscioneri, Rossella Elisei, Maura Massimino, Paolo Miccoli
Medullary thyroid carcinoma (MTC) is a rare, accounting for 5% of thyroid malignancies. It is a neuroendocrine tumor wich origins from thyroid parafollicular cells. It may be sporadic, mostly in adult patients, or inherited as autosomal dominant pattern, mostly in pediatric patients. As familial cancer, MTC may presented isolated as familial medullary thyroid carcinoma (FMTC) - 10% of cases - or, most often, as part of multiple endocrine neoplasm type 2 (MEN 2A or MEN 2B) syndromes - 90% of cases. The therapy for sporadic or hereditary MTC is surgical resection and consists in total thyroidectomy associated with central compartment lymph nodal dissection; the radicality of this intervention is fundamental to obtain a definitive cure...
November 11, 2016: Current Pediatric Reviews
https://www.readbyqxmd.com/read/27822452/multiple-endocrine-neoplasia-similar-to-human-subtype-2a-in-a-dog-medullary-thyroid-carcinoma-bilateral-pheochromocytoma-and-parathyroid-adenoma
#14
E A Soler Arias, V A Castillo, R H Trigo, M E Caneda Aristarain
Human multiple endocrine neoplasia subtype 2A (MEN 2A) is characterized by medullary thyroid carcinoma, pheochromocytoma and parathyroid hyperplasia or adenoma in the same individual. In this report, a case of a female Rottweiler with medullary thyroid carcinoma, bilateral pheochromocytoma and parathyroid adenoma was described. Clinical manifestations of muscle weakness, polydipsia, polyuria, diarrhea and weight loss were observed. Two adrenal neoplasms were identified incidentally by ultrasonography, and tumor in the left thyroid lobe was identified by palpation...
2016: Open veterinary journal
https://www.readbyqxmd.com/read/27813050/long-term-follow-up-and-treatment-of-postoperative-permanent-hypoparathyroidism-in-patients-with-medullary-thyroid-carcinoma-differences-in-complete-and-partial-disease
#15
G Leidig-Bruckner, T Bruckner, F Raue, K Frank-Raue
This study aimed to identify factors influencing long-term outcome in complete or partial postoperative hypoparathyroidism (parathyroid hormone ≤10 or >10 ng/l, respectively) in medullary thyroid carcinoma (MTC). It was designed as retrospective, long-term follow-up with single-center outpatient visits. Quality of treatment, renal calcification, and function were evaluated. In 33 patients with MTC and postoperative hypoparathyroidism, current medication includes: calcium (73%), calcitriol (73%), alfacalcidol (6%), dihydrotachysterol (3%), and cholecalciferol supplements (21%)...
December 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27808580/recurrence-of-phaeochromocytoma-in-pregnancy-in-a-patient-with-multiple-endocrine-neoplasia-2a-a-case-report-and-review-of-literature
#16
Efterpi Tingi, Angelos Kyriacou, Lynda Verghese
Multiple endocrine neoplasia type 2A (MEN 2A) is an autosomal dominant inherited condition with a prevalence of one in 40 000 individuals. It causes the development of tumours in endocrine glands, such as medullary thyroid cancer, pheochromocytomas, as well as primary hyperparathyroidism. MEN 2A in pregnancy is very rare with only 29 cases reported in the literature. The presence of pheochromocytoma is a rare cause of hypertension during pregnancy with an incidence of 0.007% of all pregnancies. This has severe implications on both mother and the foetus...
November 3, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27808486/novel-acquisitions-in-the-diagnosis-of-medullary-thyroid-carcinoma
#17
Pierpaolo Trimboli, Anna Crescenzi, Enrico Saggiorato, Giorgio Treglia, Luca Giovanella
BACKGROUND: The correct identification of medullary thyroid carcinoma (MTC) has been a challenge since its first description. In the last years some advances in this context have been achieved. Here we aimed to review and discuss published data on the more recent acquisition in the diagnosis of MTC. METHODS: A literature search of the medical databases was conducted by searching papers reporting tool for diagnosis of MTC published in the last years. The search was updated until July 2016...
November 3, 2016: Minerva Endocrinologica
https://www.readbyqxmd.com/read/27807060/m918v-ret-mutation-causes-familial-medullary-thyroid-carcinoma-study-of-8-affected-kindreds
#18
M Cecília Martins-Costa, Lucas L Cunha, Susan C Lindsey, Cleber P Camacho, Renata P Dotto, Gilberto K Furuzawa, M Sharmila A Sousa, Teresa S Kasamatsu, Ilda S Kunii, Márcio M Martins, Alberto L Machado, João R M Martins, Magnus R Dias-da-Silva, Rui M B Maciel
Germline mutations in codon 918 of exon 16 of the RET gene (M918T) are classically associated with multiple endocrine neoplasia type 2B (MEN 2B) with highly aggressive medullary thyroid cancer (MTC), pheochromocytoma and a unique phenotype. The objectives of this study are to describe the rare M918V RET mutation discovered in 8 MTC kindreds from Brazil lacking the MEN 2B phenotype classically observed in M918T patients and to investigate the presence of a founder effect for this germline mutation. Eight apparently sporadic MTC cases were diagnosed with the germline M918V RET mutation...
December 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27804856/a-papillary-thyroid-carcinoma-in-pediatric-age-an-example-of-a-rare-tumour-managed-within-a-cooperative-comprehensive-project
#19
Claudio Spinelli, Maura Massimino, Giovanna Sironi, Andrea Ferrari, Marta Podda, Stefano Chiaravalli
Though rare in childhood, thyroid cancers represent the most frequent tumours of endocrine glands in childhood and adolescence. Papillary thyroid carcinoma is a non-medullary, follicular-derived differentiated tumour of the thyroid. There is still controversy concerning the therapeutic approach of PTCs in the paediatric population; regarding which should be the extent of the surgical approach, and the need for radioactive iodine (RAI) therapy. The cooperative TREP project (Tumori Rari in Età Pediatrica [Rare Tumours in Paediatric Age]) was launched in Italy in 2000 (under the patronage of AIEOP - Associazione Italiana Ematologia Oncologia Pediatrica) with a view to improving both research the clinical management on the less common paediatric cancers...
October 31, 2016: Current Pediatric Reviews
https://www.readbyqxmd.com/read/27800472/shorter-maintenance-therapy-in-childhood-acute-lymphoblastic-leukemia-the-experience-of-the-prospective-randomized-brazilian-gbtli-all-93-protocol
#20
Silvia R Brandalise, Marcos B Viana, Vitória R P Pinheiro, Núbia Mendonça, Luiz F Lopes, Waldir V Pereira, Maria L M Lee, Elitânia M Pontes, Gláucia P Zouain-Figueiredo, Alita C A C Azevedo, Nilma Pimentel, Maria Z Fernandes, Hilda M Oliveira, Sônia R Vianna, Carlos A Scrideli, Fernando A Werneck, Maria N Álvares, Érica Boldrini, Sandra R Loggetto, Paula Bruniera, Maria J Mastellaro, Eni M Souza, Rogério A Araújo, Flávia Bandeira, Doralice M Tan, Nelson A Carvalho, Maria A S Salgado
AIM: Maintenance therapy is an important phase of the childhood ALL treatment, requiring 2-year long therapy adherence of the patients and families. Weekly methotrexate with daily 6-mercaptopurine (6MP) constitutes the backbone of maintenance therapy. Reduction in the maintenance therapy could overweight problems related with poverty of children with ALL living in limited-income countries (LIC). OBJECTIVE: To compare, prospectively, the EFS rates of children with ALL treated according to two maintenance regimens: 18 vs...
2016: Frontiers in Pediatrics
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