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Pediatric pathology

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https://www.readbyqxmd.com/read/29337004/quantitative-sensory-testing-profiles-in-children-adolescents-and-young-adults-6-20-years-with-cerebral-palsy-hints-for-a-neuropathic-genesis-of-pain-syndromes
#1
M Blankenburg, J Junker, G Hirschfeld, E Michel, F Aksu, J Wager, B Zernikow
INTRODUCTION: Many patients with cerebral palsy (CP) suffer chronic pain as one of the most limiting factors in their quality of life. In CP patients, pain mechanisms are not well understood, and pain therapy remains a challenge. Quantitative sensory testing (QST) might provide unique information about the functional status of the somatosensory system and therefore better guide pain treatment. OBJECTIVES: To understand better the underlying pain mechanisms in pediatric CP patients, we aimed to assess clinical and pain parameters, as well as QST profiles, which were matched to the patients' cerebral imaging pathology...
December 30, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29335841/reconstructing-normality-following-the-diagnosis-of-a-childhood-chronic-disease-does-rare-make-a-difference
#2
Evi Germeni, Isabella Vallini, Mario G Bianchetti, Peter J Schulz
Living with a childhood chronic disease can be challenging, especially if the diagnosis involves a rare condition. This study sought to elucidate how the diagnosis of a rare disease, as compared to a common, chronic condition, may influence maternal experiences of childhood illness. We conducted face-to-face, semi-structured interviews with 26 mothers of children treated in a pediatric hospital in the province of Lecco, Italy. Half of the participants had a child diagnosed with Bartter syndrome (BS), and the rest had a child suffering from celiac disease (CD)...
January 16, 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29331747/dural-based-cavernous-malformation-at-the-cerebral-convexity-report-of-two-pediatric-patients
#3
Guichen Li, Xuan Zhai, Yang Zhang, Ping Liang, Xuanxuan Wu, Kun Hou
BACKGROUND: Intracranial (cavernous malformations) CMs are usually located at the cerebral parenchyma, dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer that only two pediatric cases were ever reported. In this report, we present two extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiological and pathological features, treatment, and follow-up are described...
January 10, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29327107/imaging-of-pediatric-neurovascular-emergencies
#4
Yang Tang, William C Goodman, Michael D Maldonado, Xinli Du
Pediatric strokes are rare but critical diagnoses to make in the emergency setting. They are associated with a set of pathologies that are not frequently encountered in the adult population. Some of these diseases have variable clinical presentations and imaging appearance depending on the age of onset and severity of the underlying pathologies. This article reviews the differential diagnoses and noninvasive imaging evaluation of pediatric cerebral ischemic and hemorrhagic diseases.
January 11, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29325956/rapid-onset-thoracic-myelopathy-due-to-an-epidural-sarcoid-like-lesion-in-a-pediatric-patient
#5
Michael A Galgano, Carlos R Goulart, Karen Chisholm, Melissa Hazen, Scellig Stone
Isolated intraspinal neurosarcoidosis is a rare clinical entity, with most reports describing intramedullary involvement in adults. We detail the case of a nine-year-old girl with rapid onset compressive myelopathy secondary to a thoracic epidural lesion. Although pathological diagnosis was challenging, a presumptive diagnosis of isolated extradural neurosarcoidosis was made in light of the patient's investigations and dramatic response to corticosteroids. Though less likely than neoplasia, rheumatologic processes such as inflammatory granulomatous disease warrant consideration in similar cases...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29324237/dna-induction-of-mdm2-promotes-proliferation-of-human-renal-mesangial-cells-and-alters-peripheral-b-cells-subsets-in-pediatric-systemic-lupus-erythematosus
#6
Chen-Xing Zhang, Ji Chen, Li Cai, Jing Wu, Jia-Yuan Wang, Lan-Fang Cao, Wei Zhou, Tong-Xin Chen
The study is aimed to investigate the role of MDM2 in the pathogenesis of lupus nephritis (LN) in pediatric SLE (pSLE). We confirmed that MDM2 expression was increased in peripheral blood mononuclear cells (PBMCs) as well as renal specimen of SLE compared with that of controls by western blot and immunofluorescence staining. Percentage of apoptotic and necrotic CD4+T, CD8+T and B cells were detected by flow cytometry respectively and levels of plasma cell free DNA (cfDNA) were quantified in SLE and healthy controls (HC)...
January 8, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29323075/bilateral-lung-metastases-unveils-an-asymptomatic-sacrococcygeal-yolk-sac-tumor
#7
Krishnendu Mondal, Rupali Mandal
Sacrococcygeal yolk sac tumor is an uncommon pediatric neoplasm. It usually presents with intra-abdominal or gluteal pain and mass. At later stage, it disseminates to regional nodes and distant organs. We describe one such neoplasm in an 18-month-old male child who turned symptomatic with multiple bilateral lung metastases. The tumor produced the least deformity to his physique, to become detectable on routine inspection and clinical examination. Finally, a combined approach through clinical, radiological, pathological, and biochemical perspectives established the diagnosis...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322842/cd133-expression-and-mycn-amplification-induce-chemoresistance-and-reduce-average-survival-time-in-pediatric-neuroblastoma
#8
Zhi-Yong Zhong, Bao-Jun Shi, Hui Zhou, Wen-Bo Wang
Objectives Neuroblastoma (NB) is the most common pediatric solid tumor derived from the sympathetic nervous system. MYCN is amplified in nearly half of patients with NB, and its association with rapid disease progression and poor outcome is controversial. Characterization of cancer stem cells (CSCs) in NBs has been rarely studied. This study was performed to determine whether MYCN and CD133+ CSCs are associated with chemotherapy resistance and the survival time of patients with NB. Methods Fifty patients with an unequivocal pathological diagnosis of NB were recruited...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29317190/normal-pelvic-ultrasound-or-mri-does-not-rule-out-neoplasm-in-patients-with-gonadal-dysgenesis-and-y-chromosome-material
#9
Kristin M Ebert, Geri D Hewitt, Justin A Indyk, Katherine A McCracken, Leena Nahata, Venkata R Jayanthi
INTRODUCTION: Patients with gonadal dysgenesis (GD) with a Y chromosome have an increased risk of gonadal neoplasm. Few data exist on the ability of imaging to detect malignancy in intra-abdominal gonads in these patients. OBJECTIVE: We aimed to determine the correlation between preoperative imaging findings and gonadal pathology in GD patients with Y chromosome material. METHODS: A retrospective review was performed of patients with XY or XO/XY GD who underwent gonadectomy at our institution from 2003 to 2017...
December 23, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29317053/fear-of-movement-modulates-the-feedforward-motor-control-of-the-affected-limb-in-complex-regional-pain-syndrome-crps-a-single-case-study
#10
Michihiro Osumi, Masahiko Sumitani, Yuko Otake, Shu Morioka
Pain-related fear can exacerbate physical disability and pathological pain in complex regional pain syndrome (CRPS) patients. We conducted a kinematic analysis of grasping movements with a pediatric patient suffering from CRPS in an upper limb to investigate how pain-related fear affects motor control. Using a three-dimensional measurement system, we recorded the patient's movement while grasping three vertical bars of different diameters (thin, middle, thick) with the affected and intact hands. We analyzed the maximum grasp distance between the thumb and the index finger (MGD), the peak velocity of the grasp movement (PV), and the time required for the finger opening phase (TOP) and closing phase (TCP)...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29315962/multiple-dicer1-related-tumors-in-a-child-with-a-large-interstitial-14q32-deletion
#11
Leanne de Kock, Dominique Geoffrion, Barbara Rivera, Rabea Wagener, Nelly Sabbaghian, Susanne Bens, Benjamin Ellezam, Dorothée Bouron-Dal Soglio, Jessica Ordóñez, Stephanie Sacharow, Jose Fernando Polo Nieto, R Paul Guillerman, Gordan M Vujanic, John R Priest, Reiner Siebert, William D Foulkes
Germ-line interstitial deletions involving the 14q32 chromosomal region, resulting in 14q32 deletion syndrome, are rare. DICER1 is a recently described cancer-predisposition gene located at 14q32.13. We report the case of a male child with an approximately 5.8 Mbp 14q32.13q32.2 germ-line deletion, which included the full DICER1 locus. We reviewed available clinical and pathological material, and conducted genetic analyses. In addition to having congenital dysmorphic features, the child developed multiple DICER1 syndrome-related tumors before age 5 years: a pediatric cystic nephroma (pCN), a ciliary body medulloepithelioma (CBME), and a small lung cyst (consistent with occult pleuropulmonary blastoma Type I/Ir cysts seen in DICER1 mutation carriers)...
January 9, 2018: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/29312599/histopathological-molecular-clinical-and-radiological-characterization-of-rosette-forming-glioneuronal-tumor-in-the-central-nervous-system
#12
Chenlong Yang, Jingyi Fang, Guang Li, Shaowu Li, Tingting Ha, Jiangfei Wang, Bao Yang, Jun Yang, Yulun Xu
Objective: A rosette-forming glioneuronal tumor (RGNT) is a rare entity originally described in the fourth ventricle. Recently, RGNTs occurring in extraventricular sites and those with malignant behaviors have been reported. The purpose of this study was to analyze the clinicoradiological and histopathological features, therapeutic strategies, and outcomes of RGNTs. Methods: We enrolled 38 patients diagnosed with RGNTs pathologically between August 2009 and June 2016...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29309717/bucket-handle-tear-of-the-medial-meniscus-in-a-2-year-old-child
#13
Kyle Fink, Neil Kaushal, Jordan Gross, Himanshu Patel, Damon Delbello
Bucket-handle meniscal tears are extremely rare injuries in the pediatric population. Given the known sequelae of meniscal tears and the development of osteoarthritis, early diagnosis and treatment of pediatric meniscal tears are essential. The communication barrier between physicians and pediatric patients, however, creates difficulties in making the correct diagnosis of meniscal pathology. Providers should have a low threshold for obtaining further confirmatory advanced imaging if patients present with prolonged knee pain and swelling, with associated locking mechanical symptoms...
January 8, 2018: Orthopedics
https://www.readbyqxmd.com/read/29309384/toe-walking-a-neurological-perspective-after-referral-from-pediatric-orthopaedic-surgeons
#14
Katherine B Haynes, Robert L Wimberly, Jonathan M VanPelt, Chan-Hee Jo, Anthony I Riccio, Mauricio R Delgado
BACKGROUND: Toe walking (TW) in children is often idiopathic in origin. Our purpose was to determine the incidence of a neurological etiology for TW in patients seen in the neurology clinic after referral from pediatric orthopaedic surgeons. METHODS: We performed an Institutional Review Board approved retrospective review of 174 patients referred to the neurology clinic from orthopaedic surgeons at an academic pediatric tertiary care center between January 2010 and September 2015...
January 5, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29306977/acute-appendicitis-in-childhood-oral-contrast-does-not-improve-ct-diagnosis
#15
Crystal R Farrell, Adam D Bezinque, Jared M Tucker, Erica A Michiels, Bradford W Betz
INTRODUCTION: We compared the diagnostic accuracy of CT performed without and with oral contrast for suspected appendicitis in children. METHODS: In this retrospective cohort study, we reviewed abdomen/pelvis CT scans with IV contrast performed between 2011 and 2015 for suspected appendicitis. Oral contrast was used routinely before August 2013 and eliminated from the CT protocol thereafter. Diagnostic accuracy of CT was compared with operative/pathology reports, and included a 30-day follow-up period for non-surgical patients...
January 6, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29306237/pediatric-emergency-care-applied-research-network-head-injuryprediction-rules-on-the-basis-of-cost-and-effectiveness
#16
Fatma Dilek Gökharman, Sonay Aydın, Erdem Fatihoğlu, Pınar Nercis Koşar
Background/aim: Head injuries are commonly seen in the pediatric population. Noncontrast enhanced cranial CT is the method of choice to detect possible traumatic brain injury (TBI). Concerns about ionizing radiation exposure make the evaluation more challenging. The aim of this study was to evaluate the effectiveness of the Pediatric Emergency Care Applied Research Network (PECARN) rules in predicting clinically important TBI and to determine the amount of medical resource waste and unnecessary radiation exposure...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29305692/cd99-at-the-crossroads-of-physiology-and-pathology
#17
REVIEW
Michela Pasello, Maria Cristina Manara, Katia Scotlandi
CD99 is a cell surface protein with unique features and only partly defined mechanisms of action. This molecule is involved in crucial biological processes, including cell adhesion, migration, death, differentiation and diapedesis, and it influences processes associated with inflammation, immune responses and cancer. CD99 is frequently overexpressed in many types of tumors, particularly pediatric tumors including Ewing sarcoma and specific subtypes of leukemia. Engagement of CD99 induces the death of malignant cells through non-conventional mechanisms...
January 6, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29304781/evaluation-of-endoglin-cd105-expression-in-pediatric-rhabdomyosarcoma
#18
Virginia Di Paolo, Ida Russo, Renata Boldrini, Lucilla Ravà, Marco Pezzullo, Maria Chiara Benedetti, Angela Galardi, Marta Colletti, Rossella Rota, Domenico Orlando, Alessandro Crocoli, Hector Peinado, Giuseppe Maria Milano, Angela Di Giannatale
BACKGROUND: The Intratumoral Microvessel Density (IMVD) is commonly used to quantify tumoral vascularization and is usually assessed by pan-endothelial markers, such as CD31. Endoglin (CD105) is a protein predominantly expressed in proliferating endothelium and the IMVD determined by this marker measures specifically the neovascularization. In this study, we investigated the CD105 expression in pediatric rhabdomyosarcoma and assessed the neovascularization by using the angiogenic ratio IMVD-CD105 to IMVD-CD31...
January 5, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29303458/complications-following-intracranial-pressure-monitoring-in-children-a-6-year-single-center-experience
#19
Ruichong Ma, David Rowland, Andrew Judge, Amedeo Calisto, Jayaratnam Jayamohan, David Johnson, Peter Richards, Shailendra Magdum, Steven Wall
OBJECTIVE Intracranial pressure (ICP) monitoring is an important tool in the neurosurgeon's armamentarium and is used for a wide range of indications. There are many different ICP monitors available, of which fiber-optic intraparenchymal devices are very popular. Here, the authors document their experience performing ICP monitoring from 2005 to 2015 and specifically complication rates following insertion of the Microsensor ICP monitor. METHODS A retrospective case series review of all patients who underwent ICP monitoring over a 10-year period from 2005 to 2015 was performed...
January 5, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29299500/ddh-epidemiology-revisited-do-we-need-new-strategies
#20
Amir R Vafaee, Taghi Baghdadi, Azarakhsh Baghdadi, Reza Khalili Jamnani
Background: Although the developmental dysplasia of the hip (DDH) is well known to pediatric orthopedists, its etiology has still remained unknown and despite dedication of a vast majority of research, the results are still inadequate and confusing. The exact incidence of DDH and its relationship with known risk factors in Iran is still unknown. Here we represent the results of one year study on the incidence and related conditions of DDH. Methods: Sonography was performed on the hip joints of 1073 full term healthy newborns at Imam Khomeini Hospital from March 2013 to March 2014...
November 2017: Archives of Bone and Joint Surgery
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