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pediatric neoplasm

Lily Marsden, Lawrence J Jennings, Samantha Gadd, Min Yu, Elizabeth J Perlman, Mariana M Cajaiba
Metanephric stromal tumors are rare renal stromal tumors that predominantly affect children. They belong to the metanephric family of tumors along with metanephric adenofibroma and metanephric adenoma. The previous documentation of BRAF exon 15 mutations in 88% of metanephric adenomas and in isolated cases of metanephric adenofibroma prompted us to investigate the prevalence of these mutations in metanephric stromal tumors and in other pediatric renal stromal tumors. In this study, 17 metanephric stromal tumors, 22 congenital mesoblastic nephromas and 6 ossifying renal tumors of infancy were selected for BRAF exon 15 testing...
October 18, 2016: Human Pathology
Matthew R Plunk, Dolphine Oda, Shawn E Parnell, Jason N Wright, Bonnie L Cole, Ramesh S Iyer
OBJECTIVE: Lucent lesions of the pediatric mandible may present variably. Cysts, neoplasms, and developmental and inflammatory conditions have a host of possible causes. There is also substantial overlap in the imaging appearance of cysts and that of benign but locally aggressive tumors that need to undergo resection. CONCLUSION: The purpose of this article is to present common and uncommon lucent lesions of the mandible in children, with an emphasis on benign abnormalities...
October 20, 2016: AJR. American Journal of Roentgenology
Stefano Avanzini, Maria Grazia Faticato, Alessandro Crocoli, Calogero Virgone, Camilla Viglio, Elisa Severi, Anna Maria Fagnani, Giovanni Cecchetto, Giovanna Riccipetitoni, Bruno Noccioli, Ernesto Leva, Angela Rita Sementa, Girolamo Mattioli, Alessandro Inserra
BACKGROUND: Peripheral neuroblastic tumors are the most common extracranial solid neoplasms in children. Early and adequate tissue sampling may speed up the diagnostic process and ensure a prompt start of optimal treatment whenever needed. Different biopsy techniques have been described. The purpose of this multi-center study is to evaluate the accuracy and safety of the various examined techniques and to determine whether a preferential procedure exists. METHODS: All children who underwent a biopsy, from January 2010 to December 2014, as a result of being diagnosed with a peripheral neuroblastic tumor, were retrospectively reviewed...
October 20, 2016: Pediatric Blood & Cancer
Elisabeth Sterrer, Franz Windisch, Kurt Frey, Klaus Rettensteiner, Benjamin Loader
BACKGROUND: Middle ear adenoma with neuroendocrine differentiation (MEA-ND), also known as carcinoid tumor of the middle ear, is an extremely rare neoplasm, especially when located within the tympanic cavity. To the best of our knowledge, this represents the first pediatric case of a MEA-ND described in Europe. Excluding the present case, only three other pediatric cases of this disease have been published globally. CASE REPORT: We report on a 15-year-old female patient who presented with conductive hearing loss of the right ear...
October 19, 2016: Wiener Klinische Wochenschrift
Grzegorz Jedrzejewski, Magdalena M Wozniak, Agata Pawelec, Albert Matera, Magdalena Kunach, Tomasz Madej, Andrzej P Wieczorek, Katarzyna Nowakowska
The aim of the ultrasound (US) screening program was to detect neoplastic lesions in children, together with other pathologies of the developmental age in the area of the neck, abdomen, female pelvis, and scrotum in boys.US screening scans, including cervical, abdominal, pelvical, and scrotal US, were performed in the population of asymptomatic children aged from 9 months to 6 years. The children were scanned in Mobile Pediatric US Unit, consisting of 2 independent consulting rooms.The scans of 14,324 children were analyzed, 7247 boys and 7077 girls...
October 2016: Medicine (Baltimore)
Susana Galli, Arlene Naranjo, Collin Van Ryn, Jason U Tilan, Emily Trinh, Chao Yang, Jessica Tsuei, Sung-Hyeok Hong, Hongkun Wang, Ewa Izycka-Swieszewska, Yi-Chien Lee, Olga C Rodriguez, Chris Albanese, Joanna Kitlinska
Neuroblastoma (NB) is a pediatric malignant neoplasm of sympathoadrenal origin. Challenges in its management include stratification of this heterogeneous disease and a lack of both adequate treatments for high-risk patients and noninvasive biomarkers of disease progression. Our previous studies have identified neuropeptide Y (NPY), a sympathetic neurotransmitter expressed in NB, as a potential therapeutic target for these tumors by virtue of its Y5 receptor (Y5R)-mediated chemoresistance and Y2 receptor (Y2R)-mediated proliferative and angiogenic activities...
October 11, 2016: American Journal of Pathology
M Mohammadi, M Goodarzi, M R Jaafari, H R Mirzaei, H Mirzaei
Neuroblastoma (NB) is known as a pediatric neoplasm that is associated with variable histopathological features. The use of biomarkers contributes to the monitoring and treatment of various malignancies such as NB. The identification of novel biomarkers such as (epi)genetic biomarkers and microRNAs (miRNAs) in NB has led to better treatments of NB. Among them, miRNAs have emerged as powerful tools in diagnosis, prognosis and therapeutic biomarkers for patients with NB. Circulating biomarkers such as circulating miRNAs present in body fluids (for example, plasma, serum and urine) provided an interesting field of study in NB treatment...
October 14, 2016: Cancer Gene Therapy
Nima Azarakhsh, Sandra Grimes, Pranit N Chotai, Claudette Shephard, Eunice Y Huang
PURPOSE: Pediatric surgeons often care for children with ovarian tumors. Few studies report long-term outcomes for these patients. This study characterizes intermediate-term results for patients who underwent surgical resection of ovarian neoplasms as children. METHODS: Patients who underwent surgery for ovarian neoplasms at a children's hospital were identified. They were invited to participate in a telephone-based survey assessing post-surgical recurrence, dysmenorrhea, quality of life, and fertility...
October 13, 2016: Pediatric Surgery International
Artur Niedzielski, Kornela Partycka-Pietrzyk, Agnieszka Brodzisz, Beata Walczyna, Grażyna Mielnik-Niedzielska
Myxoma is a slow growing, benign neoplasm, which pathogenesis still remains disputed. The lesion has well-defined borders but a true capsule is absent. Because of that myxoma can be locally invasive causing bone destruction. A change is mainly observed among persons between 20-30 years of age and is very uncommon in the pediatric population. Most myxomas are observed in myocardium, but rarely may also manifest in the head and neck region. In the paper we describe an unusual case of myxoma of maxillary sinus in a female infant...
July 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Joel C Thompson, Gary M Woods, Michael A Arnold, Charles Elmaraghy, Samir B Kahwash, Timothy P Cripe, Bhuvana A Setty
Pediatric soft tissue sarcomas of the oral/maxillofacial region are rare neoplasms that present significant difficulty with respect to treatment and local control measures. We report four cases of pediatric oral/maxillofacial soft tissue sarcomas from our tertiary care pediatric hospital and emphasize the rarity of these malignancies and the challenges encountered in treating these lesions, and suggest areas for further research. We conclude that multimodal therapy and interdisciplinary cooperation are paramount to successful management of these lesions...
May 2016: Case Reports in Oncology
Lisa E Ishii
Facial nerve paralysis, although uncommon in the pediatric population, occurs from several causes, including congenital deformities, infection, trauma, and neoplasms. Similar to the adult population, management of facial nerve disorders in children includes treatment for eye exposure, nasal obstruction/deviation, smile asymmetry, drooling, lack of labial function, and synkinesis. Free tissue transfer dynamic restoration is the preferred method for smile restoration in this population, with outcomes exceeding those of similar procedures in adults...
November 2016: Facial Plastic Surgery Clinics of North America
Amy Sherborne, Vincent Lavergne, Katharine Yu, Leah Lee, Philip Davidson, Tali Mazor, Ivan V Smirnov, Andrew E Horvai, Mignon Loh, Steven G Dubois, Robert Goldsby, Joseph P Neglia, Sue Hammond, Leslie L Robison, Rosanna Wustrack, Joseph F Costello, Alice Nakamura, Kevin M Shannon, Smita Bhatia, Jean L Nakamura
PURPOSE: Second malignant neoplasms (SMNs) are severe late complications that occur in pediatric cancer survivors exposed to radiotherapy and other genotoxic treatments. To characterize the mutational landscape of treatment-induced sarcomas and to identify candidate SMN-predisposing variants we analyzed germline and SMN tumor samples from pediatric cancer survivors. EXPERIMENTAL DESIGN: We performed whole exome sequencing (WES) and RNA sequencing on radiation-induced sarcomas arising from two pediatric cancer survivors...
September 28, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
N A Madden, J A Marascio, D Zaenger, B Rabatic, C McDonough, T S Johnson, F M Kong, B G Dasher, W Martin, J G Stewart, J Howington, E M Marchan, S Shaaban, K Huang, A Al-Basheer, A Amoush, A Green, M Pishgou, C L Ferguson, W F Mourad
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Luca Mattei, Francesco Prada, Federico Giuseppe Legnani, Alessandro Perin, Alessandro Olivi, Francesco DiMeco
PURPOSE: Pediatric low-grade gliomas (LGGs) are the most frequent solid tumor in childhood. Based on an increasing number of literature reports, maximal safe resection is recommended as the first line of treatment whenever possible. However, distinguishing tumor tissue from the surrounding normal brain is often challenging with infiltrating neoplasms, even with the assistance of intraoperative, microscopic and conventional neuronavigation systems. Therefore, any technique that enhances the detection and visualization of LGGs intraoperatively is certainly desirable...
October 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
Tadanori Tomita, Jerome M Volk, Wenjun Shen, Tatiana Pundy
OBJECT: Glioneuronal tumors are common neoplasms among the cerebral hemisphere during childhood. They consist of several histological types, of which gangliogliomas (GGs) and dysembryoplastic neuroepithelial tumors (DNTs) are most common and often present with seizures. A great majority of glioneuronal tumors are benign. However, there are conflict reports regarding postoperative tumor recurrence rates and seizure control. The authors analyzed and compared these tumors for their locations and histology and the tumor and seizure control following resection...
October 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
Luyuan Li, John N Jensen, Sara Szabo, Peter VanTuinen, Sean M Lew
Desmoid tumors, also known as aggressive fibromatosis, are locally infiltrating musculoaponeurotic neoplasms arising in connective tissues. Desmoid tumors may be associated with familial adenomatous polyposis (FAP), a genetic disorder that presents with hundreds to thousands of precancerous colorectal polyps. The authors report the case of an 18-month-old boy who underwent resection of a right temporal desmoid tumor (initially diagnosed as cranial fasciitis) and developed a bilateral frontoparietal calvarial desmoid tumor 2 years later...
September 16, 2016: Journal of Neurosurgery. Pediatrics
Ritesh R Kalaskar, Ashita R Kalaskar
Neuroblastoma is an extremely rare pediatric neoplasm whose prognosis becomes poor and poor as the age advances. It can be sporadic or nonfamilial in origin. It is primarily a tumor of abdominal origin from where it metastasis to lymph nodes, liver, intracranial and orbital sites, and central nervous system. There is no standard dental treatment protocol for the management of neuroblastoma due to its poor survival rate and rarity. However, dental treatment may follow the protocol of preventive and restorative...
July 2016: Contemporary Clinical Dentistry
Manuel Nistal, Ricardo Paniagua, Pilar Gonzalez-Peramato, Miguel Reyes-Múgica
Testicular tumors in the prepubertal age are relatively rare, representing only 9.4% of the total testicular and paratesticular specimens from a 20 year review performed at a large pediatric hospital 1. They account for 1 to 2 % of all solid tumors in the pediatric age group, with an annual incidence between 0.5 and 2/100,000 boys according to Coppes et al. 2 and data from the Prepubertal Testicular Tumor Registry 3. Similar to other neoplasms afflicting children, a bimodal age distribution is observed. The first peak is between birth and 3 years of age, and a second one occurs at the onset of puberty,extending to the fourth decade...
September 14, 2016: Pediatric and Developmental Pathology
L M Rojas-Medina, R Carrasco-Moro, M Rivero-Garvía, L Esteban-Fernández, E Rivas-Infante, J Márquez-Rivas
BACKGROUND: Desmoplastic astrocytoma (DA) is a rare intracranial tumor which usually affects pediatric patients. The aim of this study is to describe the clinical features and management of DA based on a joint analysis of the cases reported in the scientific literature. MATERIAL AND METHODS: A thorough review was carried out, gathering those pathologically proven DAs reported since the first description of this entity. Two new own cases were included in order to illustrate this review...
September 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
Jennifer J Findeis-Hosey, Kelly Q McMahon, Sarah K Findeis
Von Hippel-Lindau disease is an autosomal dominant syndrome which occurs secondary to germline mutations in the VHL tumor suppressor gene, located on chromosome 3. Clinically von Hippel-Lindau disease is characterized by an increased risk of developing simple visceral cysts, most commonly in the pancreas and kidneys, in addition to an increased risk of developing neoplasms, often with clear cell features, in a multitude of organ systems. The most common neoplasms are cerebellar and retinal hemangioblastomas, adrenal pheochromocytomas, clear cell renal cell carcinomas, pancreatic neuroendocrine tumors, pancreatic serous cystadenomas, and endolymphatic sac tumors...
June 2016: Journal of Pediatric Genetics
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