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https://www.readbyqxmd.com/read/28544777/the-prognostic-significance-of-circulating-serum-amyloid-a-and-cxc-chemokine-ligand-4-in-osteosarcoma
#1
Ricardo J Flores, Aaron J Kelly, Yiting Li, Xiang Chen, Colin McGee, Mark Krailo, Donald A Barkauskas, John Hicks, Tsz-Kwong Man
BACKGROUND: Osteosarcoma (OS) is the most common pediatric bone cancer.  Despite advances in treatment regimens, the survival rate remains 60-70%.  There is an urgent need to identify prognostic biomarkers, so that targeted therapies can be developed to improve the outcome. PROCEDURE: Our laboratory has previously identified that circulating serum amyloid A (SAA) and CXC chemokine ligand 4 (CXCL4) are upregulated in patients with OS.  In this study, we tested if they could be used as prognostic biomarkers...
May 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28534008/a-comparison-of-pediatric-vs-adult-patients-with-the-ewing-sarcoma-family-of-tumors
#2
Vivek Verma, Kyle A Denniston, Christopher J Lin, Chi Lin
PURPOSE: This study sought to identify differences in clinical characteristics, outcomes, and treatments between adult and pediatric patients with the Ewing sarcoma family of tumors (ESFT). METHODS: By using the Surveillance, Epidemiology, and End Results database from 1983 to 2013, 1,870 patients were analyzed (n = 976 pediatric, n = 894 adult). Between the two groups, demographic, tumor, and treatment characteristics were collated and compared. The chi-square test determined differences in proportions of the variables between groups...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28530458/-early-symptoms-of-childhood-malignant-diseases
#3
Zsuzsanna Erzsébet Papp, Izabella Kelemen, Adrienne Horváth
INTRODUCTION: Childhood malignant diseases are rare in pediatric pathology. Early symptoms are not specific, fatigue, pallor, compression signs and bone marrow failure are often mentioned. AIM: To summarize the most frequent early symptoms of childhood malignancies in order to help the physicians in the early recognition. METHOD: In our retrospective study, we processed a period of 5 years between 2012-2016, with an accent on the onset manifestations of malignancies...
May 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28528870/recurrent-multifocal-osteomyelitis-in-children-experience-in-a-tertiary-care-center
#4
Ana Belén Ariza Jiménez, Esmeralda Núñez Cuadros, Rocío Galindo Zavala, Leticia Núñez Caro, Gisela Díaz-Cordobés Soriano, Antonio Urda Cardona
INTRODUCTION: Chronic recurrent multifocal osteomyelitis is a rare aseptic bone inflammation that affects pediatric patients. Its management and treatment have not yet been standardized. METHODS: Retrospective, descriptive study of patients under 14 years of age diagnosed with chronic nonbacterial osteomyelitis (CNBO) in a tertiary hospital. We included patients diagnosed over the last 6 years (2010-2015) who met the Jansson criteria. The clinical and radiological characteristics of CNBO were analyzed, as was the outcome after different therapeutic options...
May 18, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28508352/pediatric-precursor-b-acute-lymphoblastic-leukemia-are-t-helper-cells-the-missing-link-in-the-infectious-etiology-theory
#5
REVIEW
Simone Bürgler, David Nadal
Precursor B acute lymphoblastic leukemia (BCP-ALL), the most common childhood malignancy, arises from an expansion of malignant B cell precursors in the bone marrow. Epidemiological studies suggest that infections or immune responses to infections may promote such an expansion and thus BCP-ALL development. Nevertheless, a specific pathogen responsible for this process has not been identified. BCP-ALL cells critically depend on interactions with the bone marrow microenvironment. The bone marrow is also home to memory T helper (Th) cells that have previously expanded during an immune response in the periphery...
December 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/28493806/pediatric-benign-bone-tumors-what-does-the-radiologist-need-to-know-pediatric-imaging
#6
Jignesh N Shah, Harris L Cohen, Asim F Choudhri, Saurabh Gupta, Stephen F Miller
No abstract text is available yet for this article.
May 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28490517/atoh1-promotes-leptomeningeal-dissemination-and-metastasis-of-sonic-hedgehog-subgroup-medulloblastomas
#7
Katie B Grausam, Samuel Dr Dooyema, Laure Bihannic, Hasitha Premathilake, A Sorana Morrissy, Antoine Forget, Amanda M Schaefer, Justin H Gundelach, Slobodan Macura, Diane M Maher, Xin Wang, Alex H Heglin, Xijin Ge, Erliang Zeng, Stephanie Puget, Indra Chandrasekar, Kameswaran Surendran, Richard J Bram, Ulrich Schüller, Michael D Taylor, Olivier Ayrault, Haotian Zhao
Medulloblastoma (MB) arising from the cerebellum is the most common pediatric brain malignancy, with leptomeningeal metastases often present at diagnosis and recurrence associated with poor clinical outcome. In this study, we employed mouse MB models to explore the relationship of tumor pathophysiology and dysregulated expression of the Notch pathway transcription factor ATOH1, which is present in aggressive MB subtypes driven by aberrant Sonic Hedgehog/Patched (SHH/PTCH) signaling. In experiments with conditional Atoh1 mouse mutants crossed to Ptch1(+/-) mice which develop SHH-driven MB[63], animals with Atoh1 transgene expression developed highly penetrant MB at a young age with extensive leptomeningeal disease and metastasis to the spinal cord and brain, resembling xenografts of human SHH MB...
May 10, 2017: Cancer Research
https://www.readbyqxmd.com/read/28489628/lengthening-of-newly-formed-humerus-after-autologous-fibula-graft-transplantation-following-intercalary-tumor-resection
#8
Hakan Pilge, Martin Ruppert, Bernd Bittersohl, Bettina Westhoff, Rüdiger Krauspe
Secondary limb lengthening after intercalary bone resection in pediatric patients is still challenging. After the resection, a free fibula autograft can be used to reconstruct the osseous gap. However, in particular in young pediatric patients, insufficient growth of the epiphyseal plate after transplantation may lead to a significant limb-length discrepancy (LLD). In this case, the autograft was used for limb lengthening. We report on the lengthening of a humerus regenerate after fibula autograft transplantation into a humeral defect in a pediatric/young adolescent patient...
May 5, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28477224/bone-tumors-of-the-pediatric-foot-imaging-appearances
#9
Pablo Caro-Domínguez, Oscar M Navarro
Tumors of the foot are rare in children. This review illustrates radiographic, CT and MR imaging findings of foot bone tumors in children based on all cases presented in a tertiary pediatric hospital during the 15-year period of 1999-2014. This search revealed 155 tumors of the foot, 72 of the bones and 83 of the soft tissues. Osteochondroma, bone cyst and fibrous dysplasia were the most frequent benign bone lesions. Ewing sarcoma was the most common malignant osseous tumor. Some tumors showed higher prevalence in certain age ranges and others showed predilection for specific bones...
May 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28469335/pediatric-osteosarcoma-an-updated-review
#10
REVIEW
Shachi Jain Taran, Rakesh Taran, Nagraj B Malipatil
Osteosarcoma (OS), the most common type of primary malignant bone tumor, is defined by the presence of malignant mesenchymal cells producing osteoid or immature bone. The peak incidence of the most frequent type of OS, i.e., high-grade central OS, occurs in the second decade of life during the adolescent growth spurt. Most patients suffer from the pain and swelling in the involved region and, usually, seek medical attention. Diagnosis is carried out by conventional radiographs, computed tomography, and magnetic resonance image (MRI)...
January 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28468165/orbital-reconstruction-in-neuroectodermal-tumor-of-the-orbit-multimodal-treatment-approach
#11
Jorge Ernesto Cantini A, Diana M Díaz López, Esteban Francisco Hernandez Florez
INTRODUCTION: Primitive neuroectodermal tumors of peripheral origin are very rare, and orbital neuroectodermal tumors are even more uncommon. Only 25 patients with primary orbital involvement in the pediatric age group have been reported. METHODS: In this article, the authors describe their experience in the multimodality treatment approach to treat neuroectodermal tumor of the orbit. The authors also present a male patient 3-year old presenting with a neuroectodermal tumor of the right orbit causing rapidly progressive proptosis...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28454389/notch-signaling-is-important-for-epithelial-mesenchymal-transition-induced-by-low-concentrations-of-doxorubicin-in-osteosarcoma-cell-lines
#12
Jian Yang, Weichun Guo, Lu Wang, Ling Yu, Hongjun Mei, Shuo Fang, Anyuan Chen, Yang Liu, Kezhou Xia, Gaiwei Liu
Osteosarcoma is an aggressive pediatric tumor affecting growing bones that typically occurs in adolescents and young adults. Although advances in treatment have been made in recent years, a high proportion of patients relapse due to metastases, which are frequently resistant to chemotherapy and pose a significant threat to long-term survival. Previous studies have demonstrated that the epithelial-mesenchymal transition (EMT) is associated with cancer occurrence and metastasis, and our previous study demonstrated the occurrence of EMT in osteosarcoma...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28450183/hematopoietic-stem-cell-transplant-activity-in-pediatric-cancer-between-2008-and-2014-in-the-united-states-a-cibmtr-report
#13
Pooja Khandelwal, Heather R Millard, Elizabeth Thiel, Hisham Abdel-Azim, Allistair A Abraham, Jeffery J Auletta, Farid Boulad, Valerie I Brown, Bruce M Camitta, Ka Wah Chan, Sonali Chaudhury, Morton J Cowan, Miguel Angel-Diaz, Shahinaz M Gadalla, Robert Peter Gale, Gregory Hale, Kimberly A Kasow, Amy K Keating, Carrie L Kitko, Margaret L MacMillan, Richard F Olsson, Kristin M Page, Adriana Seber, Angela R Smith, Anne B Warwick, Baldeep Wirk, Parinda A Mehta
This CIBMTR report describes the use of hematopoietic stem cell transplantation (HSCT) in 4408 pediatric patients with cancer undergoing allogeneic (allo) and 3076 undergoing autologous (auto) HSCT in the United States between 2008 and 2014. In both settings, there was a greater proportion of males (n=4327; 57%), children<10 years of age (n=4412; 59%), Caucasians (n=5787; 77%) and children with a performance score ≥ 90% at HSCT (n=6187; 83%). Leukemia was the most common indication for an allo-transplant (n=4170; 94%), and among these, acute lymphoblastic leukemia (ALL) in second complete remission (n=829; 20%) and acute myeloid leukemia in first complete remission (n=800; 19%) were the most common...
April 24, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28445472/unsuspected-osteochondroma-like-outgrowths-in-the-cranial-base-of-hereditary-multiple-exostoses-patients-and-modeling-and-treatment-with-a-bmp-antagonist-in-mice
#14
Sayantani Sinha, Christina Mundy, Till Bechtold, Federica Sgariglia, Mazen M Ibrahim, Paul C Billings, Kristen Carroll, Eiki Koyama, Kevin B Jones, Maurizio Pacifici
Hereditary Multiple Exostoses (HME) is a rare pediatric disorder caused by loss-of-function mutations in the genes encoding the heparan sulfate (HS)-synthesizing enzymes EXT1 or EXT2. HME is characterized by formation of cartilaginous outgrowths-called osteochondromas- next to the growth plates of many axial and appendicular skeletal elements. Surprisingly, it is not known whether such tumors also form in endochondral elements of the craniofacial skeleton. Here, we carried out a retrospective analysis of cervical spine MRI and CT scans from 50 consecutive HME patients that included cranial skeletal images...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28438624/bladder-recurrence-of-clear-cell-sarcoma-of-the-kidney-7-years-after-initial-presentation
#15
John Weaver, Tammy Ho, Adam Lang, Joel F Koenig, Douglas E Coplen, Louis Dehner, Erica J Traxel
Clear cell sarcoma of the kidney (CCSK) is the second most common pediatric renal malignancy after Wilms tumor. CCSK has the potential to metastasize to distant sites and was historically known as the bone metastasizing renal tumor. We report an exceedingly rare case of a bladder recurrence of CCSK. Our patient presented with gross hematuria 7 years after initial complete response. He was found to have a large sessile bladder tumor and underwent a partial cystectomy with right pelvic lymph node dissection. Final pathology was metastatic CCSK...
April 21, 2017: Urology
https://www.readbyqxmd.com/read/28436593/results-for-patients-with-sarcoma-not-otherwise-specified-and-other-diagnoses-than-ewing-sarcoma-treated-according-to-the-euro-ewing-99-trial
#16
Judith Amalie Frank, Andreas Ranft, Michael Paulussen, Heribert Juergens, Jarmila Kruseova, Sebastian Bauer, Felix Niggli, Peter Reichardt, Uta Dirksen
BACKGROUND: Euro-EWING 99 trial of the European Ewing tumor Working Initiative of National Groups (EE99) was an international phase III study in patients with Ewing sarcoma. The German Society of Pediatric Oncology and Hematology (GPOH) data center registered and followed patients with other diagnoses than Ewing sarcoma who were treated according to the EE99 protocol in an additional non-Ewing database. PROCEDURE: Data of 27 patients with other diagnoses than Ewing sarcoma treated according to the EE99 protocol were analyzed...
April 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28431807/rhabdomyosarcoma-of-the-maxillofacial-region-in-children-and-adolescents-report-of-9-cases-and-literature-review
#17
Ioannis Iatrou, Nadia Theologie-Lygidakis, Ourania Schoinohoriti, Fotis Tzermpos, Anna-Maria Vessala
OBJECTIVE: To review clinical presentation, histology, treatment and survival for pediatric maxillofacial rhabdomyosarcoma (RMS) and evaluate the role of surgical treatment. STUDY DESIGN: Retrospective analysis of medical charts. METHODS: Files of patients, treated for primary maxillofacial RMS from 1997 to 2016, were examined for clinical presentation, staging, histology, treatment protocol and complications, recurrence and final outcome...
March 23, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28426528/comparative-analysis-of-multicolor-flow-cytometry-and-immunohistochemistry-for-the-detection-of-disseminated-tumor-cells
#18
Eszter Szánthó, Bettina Kárai, Gergely Ivády, Judit Bedekovics, István Szegedi, Miklós Petrás, György Ujj, Anikó Ujfalusi, Csongor Kiss, János Kappelmayer, Zsuzsanna Hevessy
Disseminating cells of a primary solid tumor may represent the origin of metastases and relapses. We aimed at comparing the diagnostic efficacy of multicolor flow cytometry (MFC) and morphology/immunohistochemistry (IHC) in the detection of disseminated tumor cells in the bone marrow (BM) and body fluids of patients with solid tumors, and in pediatric neuroblastoma cases. We investigated 72 samples retrospecively from 50 patients by MFC. Morphology/IHC data were available in 48 cases. In the first cohort, 36 samples derived from 34 patients with various forms of suspected and proven solid tumors and in the second cohort, 36 samples of 16 children with suspected and proven neuroblastoma were analyzed at diagnosis or during follow-up in a 4-color setting by MFC, and the results were compared with those obtained by IHC...
April 19, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28423674/a-single-center-clinical-analysis-of-children-with-high-risk-neuroblastoma
#19
Xiangdong Tian, Yanna Cao, Jingfu Wang, Jie Yan, Yao Tian, Zhongyuan Li, Huijuan Wang, Xiaofeng Duan, Yan Jin, Qiang Zhao
The current multidisciplinary treatment for patients with high-risk neuroblastoma (NB) is the common census. However, protocols and opinions are different in different regions and institutions. We aimed to assess the protocol formulated by Chinese Children's Cancer Group study in 2009, and the impact of surgery extent was highlightly evaluated. METHODS: This study enrolled patients with high-risk neuroblastoma between 2009 and 2014 in Department of Pediatric Oncology of Tianjin Medical University Cancer Institute and Hospital...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28403132/orbital-reconstruction-in-neuroectodermal-tumor-of-the-orbit-multimodal-treatment-approach
#20
Jorge Ernesto Cantini A, Diana M Díaz López, Esteban Francisco Hernandez Florez
INTRODUCTION: Primitive neuroectodermal tumors of peripheral origin are very rare, and orbital neuroectodermal tumors are even more uncommon. Only 25 patients with primary orbital involvement in the pediatric age group have been reported. METHODS: In this article, the authors describe their experience in the multimodality treatment approach to treat neuroectodermal tumor of the orbit. The authors also present a male patient 3-year old presenting with a neuroectodermal tumor of the right orbit causing rapidly progressive proptosis...
April 11, 2017: Journal of Craniofacial Surgery
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