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https://www.readbyqxmd.com/read/28203028/-unerupted-first-deciduous-molar-located-higher-to-the-first-premolar-a-case-report
#1
Y Zhan, H Liu
Tooth eruption is defined as the movement of a tooth from its site of development within the alveolar process to its functional position in the oral cavity. The process of tooth eruption can be divided into different phases: pre-eruptive bone stage, alveolar bone stage, mucosal stage, preocclusal stage, occlusal stage and maturation stage. Any disturbance in these phases can lead to eruptive anomalies. The incidence of unerupted teeth is usually higher among permanent teeth than among deciduous ones. Of the primary teeth reported as unerupted, second deciduous molars are the teeth most frequently involved, followed by primary central incisors...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28174417/amkl-chimeric-transcription-factors-are-potent-inducers-of-leukemia
#2
J Dang, S Nance, J Ma, J Cheng, M P Walsh, P Vogel, J Easton, G Song, M Rusch, A L Gedman, C Koss, J R Downing, T A Gruber
Acute megakaryoblastic leukemia in patients without Down syndrome is a rare malignancy with a poor prognosis. RNA sequencing of fourteen pediatric cases previously identified novel fusion transcripts that are predicted to be pathologic including CBFA2T3-GLIS2, GATA2-HOXA9, MN1-FLI, and NIPBL-HOXB9. In contrast to CBFA2T3-GLIS2 which is insufficient to induce leukemia, we demonstrate that the introduction of GATA2-HOXA9, MN1-FLI1 or NIPBL-HOXB9 into murine bone marrow induces overt disease in syngeneic transplant models...
February 8, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28174375/-characteristics-of-adolescent-and-young-adult-cancer
#3
Keizo Horibe
In adolescent and young adult(AYA)population, cancer is the leading cause of death due to illness with the lowest mortality rate as well as children, and national measures for cancer was left behind. Leukemia, lymphomas, brain tumors, thyroid cancer, ovarian cancer, cervical cancer, breast cancer, testicular cancer and bone and soft tissue sarcomas account for majority of the cancers in this age group. There has been no significant improvement in AYA patients in contrast to other age groups. AYA patients with cancer are under growing independency, starting in life to the community, and reproductive age...
January 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28167963/physicians-perspectives-on-the-diagnosis-and-treatment-of-chronic-nonbacterial-osteomyelitis
#4
Yongdong Zhao, Fatma Dedeoglu, Polly J Ferguson, Sivia K Lapidus, Ronald M Laxer, Miranda C Bradford, Suzanne C Li
Background/Purpose. Understanding the practices of pediatric rheumatologists in diagnosing and treating chronic nonbacterial osteomyelitis (CNO) can provide important information to guide the development of consensus treatment plans. The objectives of this study were to determine physicians' approaches to (1) diagnosing and monitoring CNO, (2) ordering a bone biopsy, and (3) making treatment decisions. Methods. A survey was distributed among members of the Childhood Arthritis and Rheumatology Research Alliance using a web-based questionnaire...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/28167016/lateral-skull-base-surgery-in-a-pediatric-population-a-25-year-experience-in-a-referral-skull-base-center
#5
Golda Grinblat, Sampath Chandra Prasad, Andrea Fulcheri, Melissa Laus, Alessandra Russo, Mario Sanna
OBJECTIVE: To analyze the pathology and surgical outcomes of lateral skull base (LSB) procedures in a pediatric population. STUDY DESIGN: Retrospective case review in a referral skull base center. METHODS: Charts of pediatric patients who underwent defined LSB procedures from 1983 to 2015 for various pathologies were evaluated at our center. A systematic review of literature was performed and our results were compared with the literature. RESULTS: 63 patients presented with 65 diseased ears...
March 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28152768/improving-care-quality-for-patients-with-soft-tissue-and-bone-sarcoma-by-establishing-a-national-virtual-tumor-board-and-electronic-consultation-platform
#6
Andrew Fang, Maihgan Kavanagh, Brian Kim, Jason D Lee, Craig McCormick, Lee Jae Morse, Subir Nag, Grant Nybbaken, Peter Peng, Corey M Schwartz, Joseph Song, Denah Renee Taggart, Jeanette Cu Yu
: 211 Background: Bone and soft tissue sarcomas are relatively uncommon and their management is extremely complex requiring coordinated multidisciplinary expertise for optimal care. Because Kaiser Permanente operates across many geographic regions in the country, in-person tumor board is not practical. METHODS: The Kaiser Permanente Northern California medical oncology team has developed a system-based virtual tumor board (VTB) and electronic consultation (EC) platform comprised of experts from several key disciplines including musculoskeletal/surgical oncology, musculoskeletal radiology, pathology, radiation oncology, brachytherapy, medical adult and pediatric oncology...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28125796/three-year-follow-up-of-gmcsf-bi-shrna-furin-dna-transfected-autologous-tumor-immunotherapy-vigil-in-metastatic-advanced-ewing-s-sarcoma
#7
Maurizio Ghisoli, Minal Barve, Robert Mennel, Carl Lenarsky, Staci Horvath, Gladice Wallraven, Beena O Pappen, Sam Whiting, Donald Rao, Neil Senzer, John Nemunaitis
Ewing's sarcoma is a devastating rare pediatric cancer of the bone. Intense chemotherapy temporarily controls disease in most patients at presentation but has limited effect in patients with progressive or recurrent disease. We previously described preliminary results of a novel immunotherapy, FANG (Vigil) vaccine, in which 12 advanced stage Ewing's patients were safely treated and went on to achieve a predicted immune response (IFNγ ELISPOT). We describe follow-up through year 3 of a prospective, nonrandomized study comparing an expanded group of Vigil-treated advanced disease Ewing's sarcoma patients (n = 16) with a contemporaneous group of Ewing's sarcoma patients (n = 14) not treated with Vigil...
August 2016: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28122538/upregulation-of-the-proto-oncogene-bmi-1-predicts-a-poor-prognosis-in-pediatric-acute-lymphoblastic-leukemia
#8
Hong-Xia Peng, Xiao-Dan Liu, Zi-Yan Luo, Xiao-Hong Zhang, Xue-Qun Luo, Xiao Chen, Hua Jiang, Ling Xu
BACKGROUND: Bmi-1, the B cell-specific moloney murine leukemia virus insertion site 1, is a member of the Polycomb-group (PcG) family and acts as an oncogene in various tumors; however, its expression related to the prognosis of pediatric patients with acute lymphoblastic leukemia (ALL) has not been well studied. METHODS: The Bmi-1 expression levels in the bone marrow of 104 pediatric ALL patients and 18 normal control subjects were determined by using qRT-PCR. The association between the Bmi-1 expression and the clinicopathological characteristics of pediatric ALL patients was analyzed, and the correlation between Bmi-1 and the prognosis of pediatric ALL was calculated according to the Kaplan-Meier method...
January 25, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28117008/a-review-of-ewing-sarcoma-treatment-is-it-still-a-subject-of-debate
#9
Wala Ben Kridis, Nabil Toumi, Hadil Chaari, Afef Khanfir, Kamel Ayedi, Hassib Kekes, Tahia Boudawara, Jamel Daoud, Mounir Frikha
BACKGROUND: The Ewing sarcoma (ES) represents 10 to 15% of malignant bone tumors and 40 to 45% of pediatric malignant bone tumors. The aim of this review is to clarify the therapeutic results and prognostic factors of this entity. METHODS: A systematic review of the literature was performed. Studies focused on the management of ES were considered for inclusion. RESULT: ES represents a model of multidisciplinary approach. The optimization of ES multimodality therapeutic strategies has resulted from the efforts of several national and international groups in Europe and North America and from cooperation between pediatric and medical oncologists...
January 19, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28072621/risk-stratification-of-pediatric-patients-with-neuroblastoma-using-volumetric-parameters-of-18f-fdg-and-18f-dopa-pet-ct
#10
Chia-Ju Liu, Meng-Yao Lu, Yen-Lin Liu, Chi-Lun Ko, Kuan-Yin Ko, Kai-Yuan Tzen, Hsiu-Hao Chang, Yung-Li Yang, Shiann-Tarng Jou, Wen-Ming Hsu, Ruoh-Fang Yen
PURPOSE: This study determined the prognostic value of volumetric parameters derived from pretreatment F-FDG and F-DOPA PET/CT of neuroblastoma and their correlation with clinical and histopathologic features. PATIENTS AND METHODS: A total of 25 children with neuroblastoma underwent pretreatment F-FDG and F-DOPA PET/CT within 4 weeks. The SUVmax of primary tumors on F-FDG and F-DOPA PET were recorded as SUVFDG and SUVDOPA, respectively. For volumetric parameters of primary tumors, 40% of SUVmax was used to generate volume of interest...
March 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28068876/tissue-engineered-model-of-human-osteolytic-bone-tumor
#11
Aranzazu Villasante, Alessandro Marturano-Kruik, Samuel T Robinson, Zen Liu, X Edward Guo, Gordana Vunjak-Novakovic
Ewing's sarcoma (ES) is a poorly differentiated pediatric tumor of aggressive behavior characterized by propensity to metastasize to bone. Interactions between the tumor and bone cells orchestrate a vicious cycle in which tumor cells induce osteoclast differentiation and activation to cause osteolytic lesions, broken bones, pain, and hypercalcemia. The lack of controllable models that can recapitulate osteolysis in ES impedes the development of new therapies and limits our understanding of how tumor cells invade bone...
February 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28052939/no-association-between-radiation-dose-from-pediatric-ct-scans-and-risk-of-subsequent-hodgkin-lymphoma
#12
Amy Berrington de Gonzalez, Neige Journy, Choonsik Lee, Lindsay M Morton, Richard Harbron, Douglas R Stewart, Louise Parker, Alan W Craft, Kieran McHugh, Mark Little, Mark Pearce
BACKGROUND: We examined the relationship between estimated radiation dose from CT scans and subsequent Hodgkin lymphoma in the UK pediatric CT scans cohort. METHODS: A retrospective, record linkage cohort included patients aged 0-21 years who underwent CT scans between 1980 and 2002 and were followed up for cancer or death until 2008. Poisson regression analysis was used to evaluate the relationship between estimated radiation dose (lagged by two years) and incident Hodgkin lymphoma diagnosed at least two years after the first CT scan...
January 4, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28044936/nano-delivery-in-pediatric-tumors-looking-back-moving-forward
#13
Marta Colletti, Virginia Di Paolo, Angela Galardi, Giuseppe Maria Milano, Angela Mastronuzzi, Franco Locatelli, Angela Di Giannatale
Recent advances in the treatment of pediatric tumors led to an improvement of survival in this population. As a result, many pediatric survivors experience long-term effects that impact their quality of life. Therefore, it is extremely important to identify new treatment approaches that may target the tumor minimizing the drug-related side effects. Over the past 10 years, remarkable advances in nanomedicine have provided several potential tools for cancer treatment. Recently, there has been a growing interest towards therapeutic nanocarriers in the pediatric field, since they represent a new strategy to enhance the drug efficacy and reduce the toxicity...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28027747/imaging-findings-of-kaposiform-hemangioendothelioma-in-children
#14
Young Jin Ryu, Young Hun Choi, Jung-Eun Cheon, Woo Sun Kim, In-One Kim, Ji Eun Park, Yu Jin Kim
PURPOSE: Kaposiform hemangioendothelioma (KHE) is a rare, aggressive vascular tumor that typically occurs during infancy or early childhood. Though several case reports have discussed the imaging findings of KHE, larger comprehensive studies are lacking. The purpose of this study was to evaluate the imaging findings of KHE in children. MATERIALS AND METHODS: A total of twelve cases of pathologically proven KHE were collected by searching our institution's pathology database for children diagnosed between January 2004 and April 2016 (6 male, 6 female; median age: 3 months; age range 7days - 18 years)...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28009802/benign-osteolytic-lesions-in-children-with-previously-normal-radiographs
#15
Emily Tan, Charles T Mehlman, Michael Baker
BACKGROUND: Benign bone tumors are common in children and are usually diagnosed incidentally or after pathologic fractures. However, case reports of children with lytic lesions with previously normal radiographs are rare. This series presents several such cases. METHODS: This was a retrospective case series of 8 benign osteolytic lesions in 8 pediatric patients (5 female and 3 males). All have previous radiographs of the effected extremity showing no pathology. All participants were at a single institution...
December 22, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28007665/cd25-blockade-delays-regulatory-t-cell-reconstitution-and-does-not-prevent-graft-versus-host-disease-after-allogeneic-hematopoietic-cell-transplantation
#16
Frederick L Locke, Joseph Pidala, Barry Storer, Paul J Martin, Michael A Pulsipher, Thomas R Chauncey, Niels Jacobsen, Nicolaus Kröger, Irwin Walker, Susan Light, Bronwen E Shaw, Francisca Beato, Ginna G Laport, Auayporn Nademanee, Armand Keating, Gerard Socie, Claudio Anasetti
Daclizumab, a humanized monoclonal antibody, binds CD25 and blocks formation of the IL-2 receptor on T cells. A study of daclizumab as acute graft-versus-host disease (GVHD) prophylaxis after unrelated bone marrow transplantation was conducted before the importance of CD25(+)FOXP3(+) regulatory T cells (Tregs) was recognized. Tregs can abrogate the onset of GVHD. The relation between Tregs and a graft-versus-malignancy effect is not fully understood. An international, multicenter, double-blind clinical trial randomized 210 adult or pediatric patients to receive 5 weekly doses of daclizumab at 0...
December 19, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27999474/giant-cell-tumor-a-rare-condition-in-the-immature-skeleton-a-retrospective-study-of-symptoms-treatment-and-outcome-in-16-children
#17
Thale M Asp Strøm, Anette Torød Skeie, Ingvild Koren Lobmaier, Olga Zaikova
Background. Pediatric giant cell tumor (GCT) of bone is rare and the course of the disease in the immature skeleton is sparsely described. We performed a retrospective study addressing symptoms, treatment, and outcome in children with GCT. Methods. Review of medical records and images of patients with GCT. Patients were detected from our hospital prospective database and those with open epiphyseal cartilages were included. Results. 16 children (75% girls) from 6 to 15 years old were identified. Eight lesions (50%) were in long bones and 4 (25%) in flat bones...
2016: Sarcoma
https://www.readbyqxmd.com/read/27976555/are-the-methylenetetrahydrofolate-reductase-1298-and-677-gene-polymorphisms-related-to-optic-glioma-and-hamartoma-risk-in-neurofibromatosis-type-1-patients
#18
Hikmet Gülşah Tanyıldız, Şule Yeşil, Ceyhun Bozkurt, Mehmet Onur Çandır, Sibel Akpınar-Tekgündüz, Şule Toprak, Deniz Yüksel, Gürses Şahin
The methylenetetrahydrofolate reductase (MTHFR) gene plays a key role in carcinogenesis through its effects on DNA synthesis and methylation and also has a significant role in the etiology of many disorders, such as diabetes, migraine, and cardiovascular disease. Neurofibromatoses (NF) are autosomal dominant inherited diseases that can affect tissues such as bone and skin and predispose individuals to tumor development in various parts of the nervous system or body. Optic nerve glioma and brain tumors are common in children with NF, and leukemia and lymphoma incidence is also higher than normal...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27959586/utility-of-repeat-core-needle-biopsy-of-musculoskeletal-lesions-with-initially-nondiagnostic-findings
#19
Jim S Wu, Colm J McMahon, Santiago Lozano-Calderon, Justin W Kung
OBJECTIVE: The purpose of the present study is to assess the utility of repeat image-guided core needle biopsy (CNB) of musculoskeletal lesions in the setting of initially nondiagnostic CNB findings. MATERIALS AND METHODS: A retrospective review was conducted of 1302 consecutive CNBs performed on bone or soft-tissue lesions at a single institution. Pediatric cases and spine lesions were not included. All cases for which a repeat biopsy of the same lesion was performed because biopsy results were nondiagnostic were included in the study...
December 13, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27942776/percutaneous-guided-biopsy-for-diagnosing-suspected-primary-malignant-bone-tumors-in-pediatric-patients-a-safe-accurate-and-cost-saving-procedure
#20
Antony Ceraulo, Antoine Ouziel, Emilie Lavergne, Lionel Perrier, Anne-Valérie Decouvelaere, Franck Chotel, Philippe Thiesse, Perrine Marec-Berard
BACKGROUND: Percutaneous biopsy is the reference diagnostic procedure for adult musculoskeletal tumors. Its place in pediatrics is controversial and open biopsy remains recommended. OBJECTIVE: To assess diagnostic performance and feasibility of percutaneous biopsy performed on children and young adults for suspected malignant bone tumors. MATERIALS AND METHODS: We conducted a 5-year retrospective study including patients ≤21 years who underwent a bone biopsy for a suspected malignant bone tumor...
February 2017: Pediatric Radiology
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