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Pediatric bone tumor

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https://www.readbyqxmd.com/read/28728426/osteochondroma-of-the-hyoid-first-pediatric-case-and-literature-review
#1
Blake S Raggio, Samuel Ficenec, Thomas C Flowers, Claire Lawlor, Kimsey Rodriguez
Osteochondromas, the most common benign bone tumors, are cartilaginous neoplasms of unknown origin with rare malignant potential. Osteochondromas rarely occur in the head and neck, and diagnosis relies on a combination of clinical, radiological, and histological criteria. Excision is often curative. We describe the first reported case of hyoid osteochondroma in an adolescent male with multiple osteochondroma, discuss its surgical management, and perform a review of the salient literature. Osteochondroma represents a rare diagnosis to include in the differential of any midline neck mass...
July 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28724045/spinal-tumors-in-children
#2
Andrei Fernandes Joaquim, Enrico Ghizoni, Marcelo Gomes Cordeiro Valadares, Simone Appenzeller, Simone Dos Santos Aguiar, Helder Tedeschi
Introduction: Spinal tumors are rare in the pediatric population, presenting many specific peculiarities when compared to adults. We have performed a broad narrative review to describe the most common spinal tumors in children, discussing their main characteristics and management options. Method: The authors have performed an extensive review of the peer-reviewed literature addressing the aforementioned objectives. Results: Multimodality radiological studies (plain films, 3D computed tomography scan and magnetic resonance imaging) are necessary for proper evaluation and differential diagnosis of spinal tumors in children...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28722341/proteomic-analysis-of-neuroblastoma-derived-exosomes-new-insights-into-a-metastatic-signature
#3
Marta Colletti, Andrea Petretto, Angela Galardi, Virginia Di Paolo, Luigi Tomao, Chiara Lavarello, Elvira Inglese, Maurizio Bruschi, Ana Amor Lopez, Luisa Pascucci, Birgit Geoerger, Hector Peinado, Locatelli Franco, Di Giannatale Angela
Neuroblastoma (NB) is the most common extracranial pediatric solid tumor. Around 70% of patients with metastatic disease at diagnosis present bone-marrow infiltration, which is considered a marker of poor outcome; however, the mechanism underlying this specific tropism has to be elucidated. Tumor-derived exosomes may support metastatic progression in several tumors by interacting with the microenvironment, and may serve as tumor biomarkers. The main objective of this study was to identify an exosomal signature associated with NB metastatic bone-marrow dissemination...
July 19, 2017: Proteomics
https://www.readbyqxmd.com/read/28721475/epithelioid-hemangioma-of-bone-radiologic-and-magnetic-resonance-imaging-characteristics-with-histopathological-correlation
#4
Kathleen Schenker, Steven Blumer, Diego Jaramillo, Amanda L Treece, Aashim Bhatia
BACKGROUND: Epithelioid hemangioma is a rare vascular tumor that can occur in soft tissues or bone. The tumor is part of a spectrum of vascular tumors that also includes epithelioid hemangioendothelioma and angiosarcoma. When involving the bone, the tumor usually involves the metaphysis or diaphysis of the long tubular bones and most commonly occurs in adults. It has been rarely reported in pediatric patients, and in these reported patients, the tumor primarily involves the epiphysis...
July 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28717738/collaborative-pediatric-bone-tumor-program-to-improve-access-to-specialized-care-an-initiative-by-the-lebanese-children-s-oncology-group
#5
Raya Saab, Zeina Merabi, Miguel R Abboud, Samar Muwakkit, Peter Noun, Gladys Gemayel, Elie Bechara, Hassan Khalifeh, Roula Farah, Nabil Kabbara, Tarek El-Khoury, Rasha Al-Yousef, Rachid Haidar, Said Saghieh, Toufic Eid, Samir Akel, Nabil Khoury, Layal Bayram, Matthew J Krasin, Sima Jeha, Hassan El-Solh
BACKGROUND: Children with malignant bone tumors have average 5-year survival rates of 60% to 70% with current multimodality therapy. Local control modalities aimed at preserving function greatly influence the quality of life of long-term survivors. In developing countries, the limited availability of multidisciplinary care and limited expertise in specialized surgery and pediatric radiation therapy, as well as financial cost, all form barriers to achieving optimal outcomes in this population...
February 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/28708590/whole-exome-analysis-in-osteosarcoma-to-identify-a-personalized-therapy
#6
Caterina Chiappetta, Massimiliano Mancini, Francesca Lessi, Paolo Aretini, Veronica De Gregorio, Chiara Puggioni, Raffaella Carletti, Vincenzo Petrozza, Prospero Civita, Sara Franceschi, Antonio G Naccarato, Carlo Della Rocca, Chiara M Mazzanti, Claudio Di Cristofano
Osteosarcoma is the most common pediatric primary non-hematopoietic bone tumor. Survival of these young patients is related to the response to chemotherapy and development of metastases. Despite many advances in cancer research, chemotherapy regimens for osteosarcoma are still based on non-selective cytotoxic drugs. It is essential to investigate new specific molecular therapies for osteosarcoma to increase the survival rate of these patients. We performed exomic sequence analyses of 8 diagnostic biopsies of patients with conventional high grade osteosarcoma to advance our understanding of their genetic underpinnings and to correlate the genetic alteration with the clinical and pathological features of each patient to identify a personalized therapy...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28699149/is-the-clavicula-pro-humero-technique-of-value-for-reconstruction-after-resection-of-the-proximal-humerus-in-children
#7
Dominique Barbier, Benoît De Billy, Philippe Gicquel, Sophie Bourelle, Pierre Journeau
BACKGROUND: There are several options for reconstruction of proximal humerus resections after wide resection for malignant tumors in children. The clavicula pro humero technique is a biologic option that has been used in the past, but there are only scant case reports and small series that comment on the results of the procedure. Because the longevity of children mandates a reconstruction with potential longevity not likely to be achieved by other techniques, the clavicula pro humero technique may be a potential option in selected patients...
July 11, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28696044/practice-patterns-of-palliative-radiation-therapy-in-pediatric-oncology-patients-in-an-international-pediatric-research-consortium
#8
Avani Dholakia Rao, Qinyu Chen, Ralph P Ermoian, Sara R Alcorn, Maria Luisa S Figueiredo, Michael J Chen, Karin Dieckmann, Shannon M MacDonald, Matthew M Ladra, Daria Kobyzeva, Alexey V Nechesnyuk, Kristina Nilsson, Eric C Ford, Brian A Winey, Rosangela C Villar, Stephanie A Terezakis
BACKGROUND/OBJECTIVES: The practice of palliative radiation therapy (RT) is based on extrapolation from adult literature. We evaluated patterns of pediatric palliative RT to describe regimens used to identify opportunity for future pediatric-specific clinical trials. DESIGN/METHODS: Six international institutions with pediatric expertise completed a 122-item survey evaluating patterns of palliative RT for patients ≤21 years old from 2010 to 2015. Two institutions use proton RT...
July 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28689337/osteoid-osteoma-of-the-hand-and-foot-in-children-successfully-treated-with-radiofrequency-neurotomy-probes
#9
Gokhan Kuyumcu, Murali Sundaram, Jean P Schils, Hakan Ilaslan
Osteoid osteoma is a common benign tumor that is typically found in young adults and children, usually in the long bones of the lower extremity. Radiofrequency ablation (RFA) under computed tomography guidance is the standard of care for symptomatic osteoid osteomas. However, patients with osteoid osteoma of the hand or foot are often treated with open surgery because of the risk of injury to vascular and neural structures from RFA. This risk is more pronounced in pediatric patients because of the small lesion size and proximity of lesions to important neurovascular structures...
July 8, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28654202/socioeconomic-factors-affect-the-selection-of-proton-radiation-therapy-for-children
#10
Colette J Shen, Chen Hu, Matthew M Ladra, Amol K Narang, Craig E Pollack, Stephanie A Terezakis
BACKGROUND: Proton radiotherapy remains a limited resource despite its clear potential for reducing radiation doses to normal tissues and late effects in children in comparison with photon therapy. This study examined the impact of race and socioeconomic factors on the use of proton therapy in children with solid malignancies. METHODS: This study evaluated 12,101 children (age ≤ 21 years) in the National Cancer Data Base who had been diagnosed with a solid malignancy between 2004 and 2013 and had received photon- or proton-based radiotherapy...
June 27, 2017: Cancer
https://www.readbyqxmd.com/read/28650886/elevated-fdg-activity-in-the-nonpneumatized-sphenoid-bone-in-an-infant
#11
Yin Jie Chen, Nelleke Tolboom, Lisa J States, Hongming Zhuang
A 7-month-old boy with malignant rhabdoid tumor of the right lateral neck, status post resection and chemotherapy, underwent FDG PET/CT for restaging. The images showed diffuse increased activity in the spleen and in the bone marrow of the appendicular bones and the spine, which is related to hematopoietin administered after chemotherapy. The images also revealed intense activity in the region of sphenoid bone, which is not a common region to have elevated FDG activity. The subsequent MRI scan showed that this activity was due to not-yet-converted red marrow in the sphenoid bone in this pediatric patient...
June 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28643220/denosumab-an-emerging-therapy-in-pediatric-bone-disorders
#12
REVIEW
Alison M Boyce
PURPOSE OF REVIEW: Denosumab is an inhibitor of receptor activator of nuclear factor kappa-B ligand (RANKL), and has emerged as an important novel therapy for skeletal disorders. This article examines the use of denosumab in children. RECENT FINDINGS: Considerable safety and efficacy data exists for denosumab treatment of adults with osteoporosis, bone metastases, and giant cell tumors. Pediatric data is limited; however, evidence suggests denosumab may be beneficial in decreasing bone turnover, increasing bone density, and preventing growth of certain skeletal neoplasms in children...
June 22, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28624811/altered-erythropoiesis-and-decreased-number-of-erythrocytes-in-children-with-neuroblastoma
#13
Fabio Morandi, Sebastiano Barco, Sara Stigliani, Michela Croce, Luca Persico, Corrado Lagazio, Francesca Scuderi, Maria Luisa Belli, Mariapina Montera, Giuliana Cangemi, Sarah Pozzi, Valentina Rigo, Paola Scaruffi, Loredana Amoroso, Giovanni Erminio, Vito Pistoia, Silvano Ferrini, Maria Valeria Corrias
Neuroblastoma (NB) is a pediatric tumor presenting at diagnosis either as localized or metastatic disease, which mainly involves the bone marrow (BM). The physical occupancy of BM space by metastatic NB cells has been held responsible for impairment of BM function. Here, we investigated whether localized or metastatic NB may alter hematopoietic lineages' maturation and release of mature cells in the periphery, through gene expression profiling, analysis of BM smears, cell blood count and flow cytometry analysis...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619077/what-is-the-impact-of-local-control-in-ewing-sarcoma-analysis-of-the-first-brazilian-collaborative-study-group-ewing1
#14
Ricardo G Becker, Lauro J Gregianin, Carlos R Galia, Reynaldo Jesus-Garcia Filho, Eduardo A Toller, Gerardo Badell, Suely A Nakagawa, Alexandre David, André M Baptista, Eduardo S Yonamime, Osvaldo A Serafini, Valter Penna, Julie Francine C Santos, Algemir L Brunetto
BACKGROUND: Relapse in localized Ewing sarcoma patients has been a matter of concern regarding poor prognosis. Therefore, we investigated the impact of local control modality (surgery, surgery plus radiotherapy, and radiotherapy) on clinical outcomes such as survival and recurrence in patients with non-metastatic Ewing sarcoma treated on the first Brazilian Collaborative Group Trial of the Ewing Family of Tumors (EWING1). METHODS: Seventy-three patients with localized Ewing sarcoma of bone aged < 30 years were included...
June 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28607872/vascularized-fibula-based-physis-transfer-a-follow-up-study-of-longitudinal-bone-growth-and-complications
#15
Ronnie L Shammas, Yash J Avashia, Alfredo E Farjat, Anthony A Catanzano, L Scott Levin, William C Eward, Brian E Brigman, Detlev Erdmann
BACKGROUND: The vascularized free fibula epiphyseal transfer provides an option for the preservation of limb lengthening after resection of the proximal humerus in pediatric sarcoma patients. The purpose of this study was to provide a long-term follow-up of longitudinal growth patterns and outcomes after free fibula epiphyseal transfer in upper extremity reconstruction. METHODS: A retrospective review of 4 patients who underwent free fibula epiphyseal transfer after oncologic resection of the proximal humerus for osteosarcoma was performed...
May 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28598265/robot-assisted-endoscopic-third-ventriculostomy-institutional-experience-in-9-patients
#16
Reid Hoshide, Mark Calayag, Hal Meltzer, Michael L Levy, David Gonda
OBJECTIVE The endoscopic third ventriculostomy (ETV) is an established and effective treatment for obstructive hydrocephalus. In its most common application, surgeons plan their entry point and the endoscope trajectory for the procedure based on anatomical landmarks, then control the endoscope freehand. Recent studies report an incidence of neural injuries as high as 16.6% of all ETVs performed in North America. The authors have introduced the ROSA system to their ETV procedure to stereotactically optimize endoscope trajectories, to reduce risk of traction on neural structures by the endoscope, and to provide a stable mechanical holder of the endoscope...
June 9, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28597942/copy-number-alterations-determined-by-single-nucleotide-polymorphism-array-testing-in-the-clinical-laboratory-are-indicative-of-gene-fusions-in-pediatric-cancer-patients
#17
Tracy M Busse, Jacquelyn J Roth, Donna Wilmoth, Luanne Wainwright, Laura Tooke, Jaclyn A Biegel
Gene fusions resulting from structural rearrangements are an established mechanism of tumorigenesis in pediatric cancer. In this clinical cohort, 1,350 single nucleotide polymorphism (SNP)-based chromosomal microarrays from 1,211 pediatric cancer patients were evaluated for copy number alterations (CNAs) associated with gene fusions. Karyotype or fluorescence in situ hybridization studies were performed in 42% of the patients. Ten percent of the bone marrow or solid tumor specimens had SNP array-associated CNAs suggestive of a gene fusion...
June 9, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28590782/rhabdomyosarcoma-in-children-and-adolescents-patterns-and-risk-factors-of-distant-metastasis
#18
Jeong Rye Kim, Hee Mang Yoon, Kyung-Nam Koh, Ah Young Jung, Young Ah Cho, Jin Seong Lee
OBJECTIVE: The objective of this study is to evaluate patterns of distant metastasis and identified factors that may increase the risk of distant metastasis in pediatric patients with rhabdomyosarcoma. MATERIALS AND METHODS: This retrospective study included 69 patients (age, ≤ 20 years) who had rhabdomyosarcoma diagnosed between January 2000 and February 2016. Various imaging features, including distant metastasis, were evaluated on initial and follow-up imaging studies...
August 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28589056/vaginal-ewing-sarcoma-an-uncommon-clinical-entity-in-pediatric-patients
#19
Nathan M Cross, A Luana Stanescu, Erin R Rudzinski, Douglas S Hawkins, Marguerite T Parisi
Ewing sarcoma, including classical Ewing sarcoma of the bone and primitive neuroectodermal tumors arising in bone or extraosseous primary sites, is a highly aggressive childhood neoplasm. We present two cases of Ewing sarcoma arising from the vagina in young girls. Previously reported cases in literature focused on their pathologic rather than radiographic features. We describe the spectrum of multimodality imaging appearances of Ewing sarcoma at this unusual primary site. Awareness of vaginal Ewing tumors may facilitate prompt diagnosis and lead to a different surgical approach than the more commonly encountered vaginal rhabdomyosarcoma...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28578183/central-precocious-puberty-secondary-to-adrenocortical-adenoma-in-a-female-child-case-report-and-review-of-the-literature
#20
Betül Ersoy, Deniz Kizilay, Hasan Çayirli, Peyker Temiz, Cüneyt Günşar
BACKGROUND: Pediatric adrenocortical tumors are rare but significant causes of virilization and peripheral precocious puberty (PPP). CASE: A 4-year-old girl presented with development of breast, pubic hair, and facial acne. Her bone age was advanced, and gonadotropins did not elevate in gonadotropin-releasing hormone (GnRH) test. High levels of dehydroepiandrosterone-sulfate, estradiol, and testosterone and detection of a tumor in the left adrenal gland of the abdomen by computed tomography led to a diagnosis of PPP due to adrenal tumor...
May 31, 2017: Journal of Pediatric and Adolescent Gynecology
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