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https://www.readbyqxmd.com/read/28646474/correlation-between-braf-v600e-mutation-and-clinicopathological-features-in-pediatric-papillary-thyroid-carcinoma
#1
Jiangqiao Geng, Huanmin Wang, Yuanhu Liu, Jun Tai, Yaqiong Jin, Jie Zhang, Lejian He, Libing Fu, Hong Qin, Yingluan Song, Jinzhu Su, Aiying Zhang, Xin Wen, Yongli Guo, Xin Ni
In adults, the presence of the BRAF (V600E) mutation in papillary thyroid cancer (PTC) has been demonstrated to be strongly associated with aggressive cancer-cell characteristics and poor patient prognosis. In contrast, the frequency of this mutation in pediatric PTC has undergone limited study, and the few available estimates range from 0 to 63%. Furthermore, the role of the BRAF (V600E) mutation in pediatric PTC is controversial; thus, the present study aimed to investigate the prevalence and role of the BRAF (V600E) mutation in 48 pediatric patients with PTC, aged 3-13 years...
June 15, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28625010/treatment-of-tongue-base-masses-in-children-by-transoral-robotic-surgery
#2
Fatma Tulin Kayhan, Ayse Pelin Yigider, Arzu Karaman Koc, Kamil Hakan Kaya, Ibrahim Erdim
The feasibility and effectiveness of transoral robotic surgery (TORS) in children with tongue base masses (TBMs) were evaluated. Eight pediatric patients who were treated with TORS for TBMs between January 2010 and January 2016 at a tertiary hospital included in the study. All pathologies were congenital lesions: four were lingual thyroglossal ductus cysts (LTGDCs), one was a minor salivary gland tumor, one was a vallecular cyst, one was a bronchogenic cyst, and one was an ectopic thyroid tissue. TORS was performed successfully in all cases...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28624796/comparison-of-differentiated-thyroid-carcinoma-recurrence-and-its-clinical-features-in-children-of-different-ages
#3
Bin Ye, Jun Shi, Chenling Shen, Longhao Wang, Haixia Hu, Yan Ma, Quan Wang, Jingrong Lu, Guangjun Yu, Mingliang Xiang
 The prevalence of differentiated thyroid carcinoma (DTC) in children is increasing. However, the clinical features and recurrence of DTC in children in different age groups, especially those less than 14 years old, are not well studied. We retrospectively investigated 73 children diagnosed with DTC in our hospital between January 1998 and July 2014. Data were reviewed for different age groups based on the age at initial diagnosis: 5-9, 10-14, or 15-19 years. The mean age of the recurrence group (10.6±4.1 years) was lower than that of the non-recurrence group (12...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28621837/pediatric-follicular-thyroid-carcinoma-indolent-cancer-with-low-prevalence-of-ras-mutations-and-absence-of-pax8-pparg-fusion-in-a-japanese-population
#4
Huy Gia Vuong, Tetsuo Kondo, Naoki Oishi, Tadao Nakazawa, Kunio Mochizuki, Akira Miyauchi, Mitsuyoshi Hirokawa, Ryohei Katoh
BACKGROUND: Pediatric follicular thyroid carcinomas are uncommon and their clinicopathological features and molecular profiles are still unknown. In this present study, we aimed to investigate the clinicopathological aspects of a large series of follicular thyroid carcinomas (FTCs) in pediatric patients and to analyse the point mutations in codons 12, 13 and 61 of NRAS, HRAS and KRAS genes and the rearrangements of PAX8-PPARG. METHODS: A total of 41 pediatric FTCs less than 21 years of age were enrolled in the present study...
June 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28620008/pten-dicer1-fh-and-their-associated-tumor-susceptibility-syndromes-clinical-features-genetics-and-surveillance-recommendations-in-childhood
#5
REVIEW
Kris Ann P Schultz, Surya P Rednam, Junne Kamihara, Leslie Doros, Maria Isabel Achatz, Jonathan D Wasserman, Lisa R Diller, Laurence Brugières, Harriet Druker, Katherine A Schneider, Rose B McGee, William D Foulkes
PTEN hamartoma tumor syndrome (PHTS), DICER1 syndrome, and hereditary leiomyomatosis and renal cell cancer (HLRCC) syndrome are pleiotropic tumor predisposition syndromes that include benign and malignant neoplasms affecting adults and children. PHTS includes several disorders with shared and distinct clinical features. These are associated with elevated lifetime risk of breast, thyroid, endometrial, colorectal, and renal cancers as well as melanoma. Thyroid cancer represents the predominant cancer risk under age 20 years...
June 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28602495/effects-of-socioeconomic-status-on-children-with-well-differentiated-thyroid-cancer
#6
Evan F Garner, Ilan I Maizlin, Matthew B Dellinger, Kenneth W Gow, Melanie Goldfarb, Adam B Goldin, John J Doski, Monica Langer, Jed G Nuchtern, Sanjeev A Vasudevan, Mehul V Raval, Elizabeth A Beierle
BACKGROUND: Well-differentiated thyroid cancer is the most common endocrine malignancy in children. Adult literature has demonstrated socioeconomic disparities in patients undergoing thyroidectomy, but the effects of socioeconomic status on the management of pediatric well-differentiated thyroid cancer remains poorly understood. METHODS: Patients ≤21 years of age with well-differentiated thyroid cancer remains were reviewed from the National Cancer Data Base...
June 8, 2017: Surgery
https://www.readbyqxmd.com/read/28583248/pediatric-phantom-dosimetry-of-kodak-9000-cone-beam-computed-tomography
#7
Juan F Yepes, Megan R Booe, Brian J Sanders, James E Jones, Ygal Ehrlich, John B Ludlow, Brandon Johnson
PURPOSE: The purpose of the study was to evaluate the radiation dose of the Kodak 9000 cone-beam computed tomography (CBCT) device for different anatomical areas using a pediatric phantom. METHODS: Absorbed doses resulting from maxillary and mandibular region three by five cm CBCT volumes of an anthropomorphic 10-year-old child phantom were acquired using optical stimulated dosimetry. Equivalent doses were calculated for radiosensitive tissues in the head and neck area, and effective dose for maxillary and mandibular examinations were calculated following the 2007 recommendations of the International Commission on Radiological Protection (ICRP)...
May 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/28581673/the-role-of-thyroid-fna-cytology-in-pediatric-malignant-lesions-an-overview-of-the-literature
#8
REVIEW
Esther Diana Rossi, Maurizio Martini, Tonia Cenci, Sara Capodimonti, Luigi Maria Larocca
When one is dealing with pediatric thyroid lesions, fine-needle aspiration is the first diagnostic tool for the correct characterization of these nodules. Despite the apparent infrequency of thyroid cancers in children, recent data from the National Cancer Institute prove that the incidence has been increasing, especially in adolescents. With the same data, a higher prevalence of well-differentiated cancers can be estimated, with 90% diagnosed as papillary thyroid cancer. Nonetheless, some publications have demonstrated that some specific malignant variants are more frequent in children and have a more aggressive behavior that justifies the increased number of surgical procedures...
June 5, 2017: Cancer
https://www.readbyqxmd.com/read/28561265/mild-tsh-resistance-clinical-and-hormonal-features-in-childhood-and-adulthood
#9
Maria Cristina Vigone, Marianna Di Frenna, Fabiana Guizzardi, Giulia Gelmini, Tiziana de Filippis, Stefano Mora, Silvana Caiulo, Micol Sonnino, Marco Bonomi, Luca Persani, Giovanna Weber
OBJECTIVE: Mutations in TSH receptor (TSHR) are associated with TSH resistance, a genetic defect characterized by a heterogeneous phenotype ranging from severe hypothyroidism to subclinical hypothyroidism (SCH). We assessed the clinical and hormonal pattern of TSHR variants in a series of pediatric patients, and the long-term outcome of growth, biochemical measurements of metabolism and neuropsychological functions in TSHR mutations carriers. DESIGN: Observational, retrospective study...
May 31, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28558814/approach-to-growth-hormone-therapy-in-children-with-chronic-kidney-disease-varies-across-north-america-the-midwest-pediatric-nephrology-consortium-report
#10
Oleh M Akchurin, Amy J Kogon, Juhi Kumar, Christine B Sethna, Hoda T Hammad, Paul J Christos, John D Mahan, Larry A Greenbaum, Robert Woroniecki
BACKGROUND: Growth impairment remains common in children with chronic kidney disease (CKD). Available literature indicates low level of recombinant human growth hormone (rhGH) utilization in short children with CKD. Despite efforts at consensus guidelines, lack of high-level evidence continues to complicate rhGH therapy decision-making and the level of practice variability in rhGH treatment by pediatric nephrologists is unknown. METHODS: Cross-sectional online survey electronically distributed to pediatric nephrologists through the Midwest Pediatric Nephrology Consortium and American Society of Pediatric Nephrology...
May 30, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28557749/cancer-risk-after-pediatric-solid-organ-transplantation
#11
Elizabeth L Yanik, Jodi M Smith, Meredith S Shiels, Christina A Clarke, Charles F Lynch, Amy R Kahn, Lori Koch, Karen S Pawlish, Eric A Engels
BACKGROUND: The effects of pediatric solid organ transplantation on cancer risk may differ from those observed in adult recipients. We described cancers in pediatric recipients and compared incidence to the general population. METHODS: The US transplant registry was linked to 16 cancer registries to identify cancer diagnoses among recipients <18 years old at transplant. Standardized incidence ratios (SIRs) were estimated by dividing observed cancer counts among recipients by expected counts based on the general population rates...
May 2017: Pediatrics
https://www.readbyqxmd.com/read/28538388/myxedema-coma-a-case-report-of-pediatric-emergency-care
#12
Yueniu Zhu, Wenjuan Qiu, Mengyan Deng, Xiaodong Zhu
RAIONALE: Myxedema coma (MC) is extremely rare but lethal in pediatric patients with hypothyroidism leading to altered mental status and hypothermia. But there is no clinical guideline for such cases. PATIENT CONCERNS: A 6-year-old Chinese girl presented with coma and hypothermia preceded by pneumonia. Her lab results were: free thyroxin (T4) 4.18 pmol/L and thyroid-stimulating hormone (TSH) > 150 μIU/mL with extremely elevated anti-thyroid peroxidase (TPO-Ab) and anti-thyroglobulin...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28534114/pediatric-hypothyroidism-diagnosis-and-treatment
#13
Ari J Wassner
Thyroid hormone has important physiologic functions in nearly every organ system. The critical role of thyroid hormone in growth and in physical and neurologic development lends particular importance to the prompt diagnosis and appropriate treatment of hypothyroidism in infants and children. Congenital hypothyroidism is common and has potentially devastating neurologic consequences. While the approach to diagnosis and treatment of severe congenital hypothyroidism is well established, data continue to emerge about the genetic causes, clinical significance, and prognosis of the milder forms of congenital hypothyroidism that are increasingly being diagnosed by newborn screening...
May 22, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28523127/high-intensity-focused-ultrasound-hifu-ablation-of-benign-thyroid-nodules-a-systematic-review
#14
REVIEW
Brian Hung-Hin Lang, Arnold L H Wu
BACKGROUND: With an increasing number of imaging studies being done nowadays, the number of incidentally discovered thyroid nodules is expected to rise. Although many of these nodules are small and benign in nature, some do grow and may cause pressure and/or thyrotoxic symptoms. Surgical resection has traditionally been recommended for symptomatic nodules but is associated with risk of hypothyroidism, bleeding, infection, and nerve damage. High intensity focused ultrasound (HIFU) is one of the non-surgical thermal ablation techniques that may serve as an alternative in the treatment of benign thyroid nodules...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28521635/pathologic-characteristics-natural-history-and-prognostic-implications-of-braf-v600e-mutation-in-pediatric-papillary-thyroid-carcinoma
#15
Steven Hardee, Manju L Prasad, Pei Hui, Catherine A Dinauer, Raffaella A Morotti
The BRAF(V600E) mutation is the most common genetic aberration in papillary thyroid cancer (PTC), found in up to 68% of PTC in adults where it is associated with aggressive features. The incidence of this mutation in pediatric PTC is less frequent, reported as 0%-20% in the past and up to 63% in one recent series. Data suggest the mutation is not associated with an aggressive course in children; however, there are limited numbers of reported case series, so the prognostic implications remain poorly understood...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28508616/ultrasound-elastography-in-pediatric-congenital-hypothyroid-patients
#16
Mehmet Akif Sarıca, Tahir Dalkıran, Mehmet Sait Menzilcioğlu, Mahmut Duymuş, Nursel Yurttutan
OBJECTIVES: Congenital hypothyroidism (CH) is most frequently encountered in newborns as an endocrine disorder characterized by thyroid hormone deficiency, and is one of the most common reasons for preventable mental retardation. This prospective study was designed to detect the pediatric occurrences of CH followed as euthyroid, with no anomalies detected via US on the gray scale, in comparison with a pediatric group with normal levels. METHODS: A total of 42 apparently healthy children with no thyroid disorder (Group 1) and 54 euthyroid CH (Group 2) using thyroid hormone were included in this study...
September 2016: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28508608/myopathy-in-pediatric-thyroid-states-a-review-of-the-literature
#17
Elena Dingle, Resmy Palliyil-Gopi, Maria Contreras, Brenda Kohn, Preneet Cheema Brar
This review highlights the presentations of myopathy in children in both hypothyroid and hyperthyroid states with an emphasis on the pathophysiology, diagnosis and treatment. Based on our review of the literature data, myopathy should be considered in all children presenting with muscular weakness or altered muscle enzymes in the context of thyroid disease.
December 2016: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28476228/molecular-genetics-of-thyroid-cancer-in-children-and-adolescents
#18
REVIEW
Andrew J Bauer
There has been a steady incorporation of powerful new molecular tools into the evaluation and management of thyroid nodules and thyroid cancer. With an increasing incidence of nodules and differentiated thyroid cancer (DTC) being diagnosed in children and adolescents, oncogene data are providing insight into the clinical differences between pediatric and adult patients with histologically similar DTC. However, additional investment and efforts are needed to define the genomic landscape for pediatric DTC with the goal of improving preoperative diagnostic accuracy as well as stratifying treatment in an effort to reduce complications of therapy...
June 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28475292/long-term-follow-up-of-endocrine-function-among-young-children-with-newly-diagnosed-malignant-central-nervous-system-tumors-treated-with-irradiation-avoiding-regimens
#19
Anne M Cochrane, Clement Cheung, Kasey Rangan, David Freyer, Leena Nahata, Girish Dhall, Jonathan L Finlay
BACKGROUND: The adverse effects of irradiation on endocrine function among patients with pediatric brain tumor are well documented. Intensive induction chemotherapy followed by marrow-ablative chemotherapy with autologous hematopoietic cell rescue (AuHCR) without central nervous system (CNS) irradiation has demonstrated efficacy in a proportion of very young children with some malignant CNS tumors. This study assessed the long-term endocrine function of young children following chemotherapy-only treatment regimens...
May 5, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28474256/pediatric-imaging-in-dicer1-syndrome
#20
Marta Tijerin Bueno, Claudia Martínez-Ríos, Alejandro De la Puente Gregorio, Rayan A Ahyad, Anita Villani, Harriet Druker, Kalene van Engelen, Bailey Gallinger, Laura Aronoff, Ronald Grant, David Malkin, Mary-Louise C Greer
BACKGROUND: DICER1 syndrome, arising from a mutation in the DICER1 gene mapped to chromosome 14q32, is associated with an increased risk of a range of benign and malignant neoplasms. OBJECTIVE: To determine the spectrum of abnormalities and imaging characteristics in patients with DICER1 syndrome at a tertiary pediatric hospital. MATERIALS AND METHODS: This retrospective analysis evaluated imaging in patients ≤18 years with DICER1 germline variants between January 2004 and July 2016...
May 4, 2017: Pediatric Radiology
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