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pediatric neoplasm

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https://www.readbyqxmd.com/read/29221636/urothelial-neoplasms-in-pediatric-and-young-adult-patients-a-large-single-center-series
#1
James A Saltsman, Marcus M Malek, Victor E Reuter, William J Hammond, Enrico Danzer, Harry W Herr, Michael P LaQuaglia
PURPOSE: Bladder cancer is the sixth most common cancer in the United States, but is exceedingly rare in young patients, leading to a lack of accepted standards for diagnosis, treatment, and surveillance. We review our institutional experience with bladder urothelial neoplasms in pediatric and young adult patients summarizing presentation, treatment, and outcomes. METHODS: Surgical pathology records at our institution were searched for cases of urothelial neoplasms among patients ≤25 years of age treated between January 1997 and September 2016...
November 14, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29204195/magnitude-of-neurogenic-tumor-burden-in-pediatric-population-a-tertiary-care-center-study
#2
Shagufta Qadri, Mahboob Hasan, Kafil Akhtar
Objective: Progress in the diagnosis and treatment of childhood neoplasm in the past few decades is one of the most gratifying achievements in the field of oncology. This study was aimed to ascertain the burden (incidence and prevalence) and histopathologic features of neurogenic tumors occurring in the pediatric population. Materials and Methods: The study evaluated a total of 492 cases of pediatric tumors over a period of 8 years from 2007 to 2015, including patients of 0-12 years of age group; attending the out-patients and in-patients Department of Pediatrics and Pediatric Surgery at Jawaharlal Nehru Medical College, AMU, Aligarh, with the complaints of tumor or tumor associated sign and symptoms...
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29200163/therapy-related-acute-myeloid-leukemia-after-the-treatment-of-primary-solid-cancer-in-children-a-single-center-experience
#3
Kyung Taek Hong, Jung Yoon Choi, Che Ry Hong, Hyoung Jin Kang, Kyung Duk Park, Hee Young Shin
Therapy-related acute myeloid leukemia (t-AML) has a dismal prognosis and is one of the most frequent second malignant neoplasms which could be encountered by pediatric oncologists. Between October 2000 and September 2016, 16 patients who had primary solid tumors were diagnosed with t-AML at the Seoul National University Children's Hospital. The median patient age at the time of diagnosis of their primary solid tumors was 9.6 years (range, 0.1 to 15.4 y), and that of t-AML was 14.0 years (range, 4.7 to 23...
December 1, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29200103/bcor-internal-tandem-duplication-in-high-grade-uterine-sarcomas
#4
Adrián Mariño-Enriquez, Alexandra Lauria, Joanna Przybyl, Tony L Ng, Magdalena Kowalewska, Maria Debiec-Rychter, Raji Ganesan, Vaiyapuri Sumathi, Suzanne George, W Glenn McCluggage, Marisa R Nucci, Cheng-Han Lee, Jonathan A Fletcher
Endometrial stromal sarcomas (ESSs) are mesenchymal uterine tumors characterized by recurrent genetic events, most commonly chromosomal rearrangements, that create oncogenic gene fusions. High-grade endometrial stromal sarcomas (HG-ESSs), as defined in the 2014 World Health Organization Classification, typically contain oncogenic YWHAE-NUTM2 fusions; however, although not well characterized, there are tumors morphologically overlapping with HG-ESS that do not contain the YWHAE-NUTM2 fusions. These fusions are also found in certain pediatric primitive sarcomas, including clear cell sarcoma of the kidney and soft tissue undifferentiated round cell sarcoma of infancy...
December 1, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29192869/predictors-of-clinical-outcome-in-pediatric-oligodendroglioma-meta-analysis-of-individual-patient-data-and-multiple-imputation
#5
Kevin Yuqi Wang, Emilian R Vankov, Doris Da May Lin
OBJECTIVE Oligodendroglioma is a rare primary CNS neoplasm in the pediatric population, and only a limited number of studies in the literature have characterized this entity. Existing studies are limited by small sample sizes and discrepant interstudy findings in identified prognostic factors. In the present study, the authors aimed to increase the statistical power in evaluating for potential prognostic factors of pediatric oligodendrogliomas and sought to reconcile the discrepant findings present among existing studies by performing an individual-patient-data (IPD) meta-analysis and using multiple imputation to address data not directly available from existing studies...
December 1, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29192868/bullough-s-bump-unusual-protuberant-fibro-osseous-tumor-of-the-temporal-bone-case-report
#6
Bowen Jiang, Harry Mushlin, Lei Zhang, Aaron W James, Alan R Cohen
Scalp and calvarial masses are common in children and the differential diagnosis is broad. The authors recently cared for a child with an unusual fibro-osseous lesion of the temporal bone that has previously not been described in the pediatric neurosurgery literature. A 10-year-old girl presented with a firm, slowly enlarging protuberant mass arising from the squamous suture of the temporal bone without intracranial extension. The mass was removed en bloc through a temporal craniectomy and cranioplasty was performed...
December 1, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29187024/ossifying-renal-tumor-of-infancy-report-of-a-case-with-positive-wt-1-immunohistochemistry-and-high-mitotic-index-and-review-of-the-literature
#7
Benoit Vaillancourt, Luc Oligny, Julie Déry, Julie Franc-Guimond, Dorothée Bouron-Dal Soglio
Ossifying renal tumor of infancy (ORTI) is a rare, benign pediatric tumor of the kidney. Since first reported by Chatten in 1980, 23 cases have been published. Previous authors have argued that ORTI might originate from nephrogenic rests, thereby sharing a pathogenic relationship with Wilms' tumor (WT). ORTI is characterized histologically by a population of polygonal osteoblast-like cells around an osteoid core and densely cellular component of blastemal-like or spindle cells. While the immunohistochemical profile of the cellular components has been reported, to the best of our knowledge, the status of WT1 expression has only been reported once, where it showed negative marking...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29185819/reversal-of-glanzmann-thrombasthenia-platelet-phenotype-after-imatinib-treatment-in-a-pediatric-chronic-myeloid-leukemia-patient
#8
Richa Chauhan, Sudha Sazawal, Kanwaljeet Singh, R Ragesh R Nair, Sunita Chhikara, Roopam Deka, Rekha Chaubey, Karthika Kundil Veetil, Prasad Dange, Manoranjan Mahapatra, Renu Saxena
Chronic Myelogenous Leukemia (CML) is a myeloproliferative neoplasm characterized by proliferation of Philadelphia positive clonal pluripotent hematopoietic cells. Bleeding is a rare presentation of CML that can occur due to platelet dysfunction. Both pre-treatment and post-treatment platelet function abnormalities in CML have been described in the literature. We describe a rare case of childhood CML who presented with mucocutateous bleeding manifestations. On laboratory workup, a Glanzmann Thrombasthenia (GT) like platelet phenotype was demonstrated along with confirmation of diagnosis of CML in chronic phase...
November 29, 2017: Platelets
https://www.readbyqxmd.com/read/29174943/use-of-99mtc-sestamibi-spect-ct-in-the-diagnosis-of-hybrid-oncocytic-chromophobe-tumor-in-a-pediatric-patient
#9
Nima Almassi, Michael A Gorin, Andrei Purysko, Steven P Rowe, Jihad Kaouk, Mohamad E Allaf, Steven C Campbell, Audrey Rhee
The differential diagnosis of solid renal neoplasms in adolescence includes aggressive malignancy and indolent oncocytic tumors which are typically indistinguishable using conventional imaging. We report use of 99mTc-sestamibi single photon emission computed tomography/x-ray computed tomography (SPECT/CT) in characterizing enhancing renal neoplasms in a pediatric patient. Genetic testing suggested a hereditary syndrome associated with aggressive malignancy, while renal mass biopsy suggested an oncocytic tumor...
November 23, 2017: Urology
https://www.readbyqxmd.com/read/29163800/end-of-life-care-in-children-with-hematologic-malignancies
#10
Jessica I Hoell, Jens Warfsmann, Stefan Balzer, Arndt Borkhardt, Gisela Janssen, Michaela Kuhlen
Introduction: Hematologic malignancies (HM) represent the most common neoplasms in childhood. Despite improved overall survival rates, they are still a major contributor to cancer death in children. Aims: To determine the proportion of children with HM in pediatric palliative care (PPC) and to identify the clinical characteristics and symptoms in comparison to children with extracranial solid tumors (non HM patients). Patients and Methods: This study was conducted as a single-center retrospective cohort study of patients in the care of a large specialized PPC team...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29159601/activating-fgfr1-mutations-in-sporadic-pheochromocytomas
#11
Jenny Welander, Małgorzata Łysiak, Michael Brauckhoff, Laurent Brunaud, Peter Söderkvist, Oliver Gimm
INTRODUCTION: Pheochromocytomas are neuroendocrine tumors of the adrenal glands. Up to 40% of the cases are caused by germline mutations in one of at least 15 susceptibility genes, making them the human neoplasms with the highest degree of heritability. Recurrent somatic alterations are found in about 50% of the more common sporadic tumors with NF1 being the most common mutated gene (20-25%). In many sporadic tumors, however, a genetic explanation is still lacking. MATERIALS AND METHODS: We investigated the genomic landscape of sporadic pheochromocytomas with whole-exome sequencing of 16 paired tumor and normal DNA samples and extended confirmation analysis in 2 additional cohorts comprising a total of 80 sporadic pheochromocytomas...
November 20, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29157673/circulating-micrornas-as-biomarkers-for-pediatric-astrocytomas
#12
Javier Enrique López-Aguilar, Miguel A Velázquez-Flores, Luis A Simón-Martínez, Richard Ávila-Miranda, Marco A Rodríguez-Florido, Ruth Ruiz-Esparza Garrido
BACKGROUND AND AIMS: Since MicroRNAs (miRNAs) are potent regulators of gene expression, their expression and function alterations are associated with different types of cancer, including pediatric astrocytoma. Since the secretion of miRNAs by tumors into corporal fluids has made it possible to identify biomarkers in cancer, their deter mination in pediatric astrocytoma is vital. In order to gain insight into the mechanisms controlled by miRNAs in these neoplasms, we tested the expression of miRNAs 130a, 145, 335, 1303, and let-7g-3p by qPCR in tumors and blood serum from pediatric patients with astrocytoma...
May 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29155023/therapy-related-myeloid-neoplasm-in-an-18-year-old-boy-with-b-lymphoblastic-leukemia
#13
Xin Qing, Eduard Panosyan, Changjun Yue, Ping Ji, Moran Gotesman, Samuel French, Junchao Cai
BACKGROUND: Acute lymphoblastic leukemia (ALL) is the most common pediatric malignancy. Acute myeloid leukemia or myelodysplastic syndrome during the course of ALL is a rare entity. Some of these cases are therapy-related while the others occur due to lineage switch. The correct diagnosis relies on comparing the immunophenotypes and cytogenetic/molecular alterations of the myeloid neoplasm and the ALL. We present the clinical, pathologic and cytogenetic features of a case of an 18-year-old male with prior treatment for B-lymphoblastic leukemia (B-ALL) who developed therapy-related myeloid neoplasm (t-MN) 4-5years after his initial diagnosis of B-ALL...
November 16, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29144839/distinguishing-benign-from-malignant-circumscribed-orbital-tumors-in-children
#14
Yufei Tu, Frederick A Jakobiec, Katherine Leung, Suzanne K Freitag
An orbital neoplasm in children is an uncommon clinical finding. Clinical suspicion should be based on many factors, including its location, the nature of onset, associated systemic signs and symptoms, family and social histories, examination findings, and radiographic characteristics. We present two cases of young children of similar age with a rapid-onset orbital mass. In both cases, a circumscribed round lesion was found in the superomedial orbit. An orbital schwannoma, a benign and usually slow growing tumor, was found in the first patient...
November 16, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29135901/clinical-factors-associated-with-pediatric-brain-neoplasms-versus-primary-headache-a-case-control-analysis
#15
David C Sheridan, Bethany Waites, Bradley Lezak, Robert J Coryell, Kellie J Nazemi, Amber L Lin, Rongwei Fu, Matthew L Hansen
OBJECTIVE: Pediatric headaches are a common presentation to emergency departments accounting for almost half a million annual visits. Providers are left with the difficult task of deciding who has a secondary headache etiology that warrants neuroimaging. METHODS: We conducted a retrospective case-control study. Patients from a pediatric neuro-oncology clinic database with brain cancer and a headache at presentation were identified as cases. Controls were patients from 2 local pediatric tertiary care emergency departments with a final diagnosis of headache after negative neuroimaging...
November 14, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29132164/mutational-spectrum-of-fanconi-anemia-associated-myeloid-neoplasms
#16
Mwe Mwe Chao, Kathrin Thomay, Gudrun Goehring, Marcin Wlodarski, Victor Pastor, Brigitte Schlegelberger, Detlev Schindler, Christian Peter Kratz, Charlotte Niemeyer
Individuals with Fanconi anemia (FA) have a high risk of developing myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), yet the secondary somatic mutations lending to these malignancies remain to be further elucidated. We employed a next-generation sequencing myeloid neoplasia gene panel to determine the mutational spectrum of FA-related MDS/AML. Ten of 16 patients showed missense, nonsense, insertion or duplication mutations in 13 genes. In contrast to findings in MDS in the general population, mutations in genes involved in RNA splicing were rarely affected...
November 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/29128074/flow-cytometry-in-pediatric-hematopoietic-malignancies
#17
REVIEW
Jie Li, Gerald Wertheim, Michele Paessler, Vinodh Pillai
Utility of flow cytometry in the evaluation of pediatric hematopoietic neoplasms and the differences from adult hematopoietic neoplasms are discussed in this review. Distinction of hematogones from B-lymphoblasts, detection of residual/relapsed disease after novel targeted therapies, and evaluation of pediatric myeloid neoplasms are discussed.
December 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29102152/testicular-tumors-in-prepubescent-patients
#18
Ilan I Maizlin, Matthew Dellinger, Kenneth W Gow, Adam B Goldin, Melanie Goldfarb, Jed G Nuchtern, Monica Langer, Sanjeev A Vasudevan, John J Doski, Mehul V Raval, Elizabeth A Beierle
BACKGROUND/PURPOSE: Pediatric testicular tumors are rare, constituting only 1% of all pediatric solid tumors. Single-institution studies addressing pediatric testicular tumors published to date have been limited in the number of patients. METHODS: We utilized the National Cancer Data Base (1998-2012) to review all prepubescent patients (≤12 years old) with testicular neoplasms. Demographics, tumor characteristics, treatment modalities, and outcomes were abstracted...
October 8, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29089679/embryonal-rhabdomyosarcoma-of-the-biliary-tree-a-rare-cause-of-obstructive-jaundice-in-children-which-can-mimic-choledochal-cysts
#19
Dhara J Kinariwala, Andrew Y Wang, Patrick D Melmer, William P McCullough
Jaundice in children is more often due to hepatic disease than obstruction. Differential considerations for obstructive jaundice in children include choledocholithiasis, choledochal cysts and rare neoplasms. Rhabdomyosarcoma, the most common soft tissue sarcoma in pediatric patients, typically involves the head and neck, genitourinary system and extremities. Embryonal rhabdomyosarcoma of the biliary tree is a rare entity. We present a 3-year-old boy with abrupt onset obstructive jaundice. Although initial imaging suggested a dilated biliary system with fusiform common bile duct, sludge, and possible cholelithiasis, endoscopic retrograde cholangiopancreatogram (ERCP) diagnosed a common bile duct embryonal rhabdomyosarcoma and further imaging showed involvement of the cystic duct...
July 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29081927/atelectasis-in-pediatrics-a-case-of-carcinoid-tumor
#20
Cláudia Vaz Guerreiro, Paula Ornelas, Luísa Pereira, Nuno Abecasis, Maria Teresa Almodovar
Carcinoid pulmonary tumors occur in the fourth to sixth decades of life. Usually, typical carcinoid arise a decade earlier when compared to atypical carcinoid (45 years and 55 years, respectively). Typical carcinoid tumors are the most common primary lung neoplasm in children and late adolescents, but there are less than 40 cases described in the literature. The clinical presentation is nonspecific and usually the symptoms are due to bronchial obstruction, sometimes with recurrent pneumonia. Its rarity may delay diagnosis but in most cases a favorable course after treatment is observed...
October 3, 2017: Rare Tumors
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