keyword
MENU ▼
Read by QxMD icon Read
search

atypical plexus choroid

keyword
https://www.readbyqxmd.com/read/29661558/genetic-assessment-and-folate-receptor-autoantibodies-in-infantile-onset-cerebral-folate-deficiency-cfd-syndrome
#1
V Th Ramaekers, K Segers, J M Sequeira, M Koenig, L Van Maldergem, V Bours, U Kornak, E V Quadros
INTRODUCTION: Cerebral folate deficiency (CFD) syndromes are defined as neuro-psychiatric conditions with low CSF folate and attributed to different causes such as autoantibodies against the folate receptor-alpha (FR) protein that can block folate transport across the choroid plexus, FOLR1 gene mutations or mitochondrial disorders. High-dose folinic acid treatment restores many neurologic deficits. STUDY AIMS AND METHODS: Among 36 patients from 33 families the infantile-onset CFD syndrome was diagnosed based on typical clinical features and low CSF folate...
March 3, 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29617945/intracranial-neoplasms-in-the-first-year-of-life-results-of-a-third-cohort-of-patients-from-a-single-institution
#2
Sebastian M Toescu, Gregory James, Kim Phipps, Owase Jeelani, Dominic Thompson, Richard Hayward, Kristian Aquilina
BACKGROUND: Brain tumors in the first year of life are rare and their management remains challenging. OBJECTIVE: To report on the contemporary management of brain tumors in infants with reference to previous series from our institution. METHODS: Retrospective cohort study design. Electronic/paper case note review of all brain tumors diagnosed at our institution in children aged <1 yr since the publication of our previous series. RESULTS: Ninety-eight patients were seen...
April 3, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29546484/roles-of-the-apparent-diffusion-coefficient-and-tumor-volume-in-predicting-tumor-grade-in-patients-with-choroid-plexus-tumors
#3
Tomoaki Sasaki, John Kim, Toshio Moritani, Aristides A Capizzano, Shawn P Sato, Yutaka Sato, Patricia Kirby, Shunta Ishitoya, Akiko Oya, Masahiro Toda, Sayaka Yuzawa, Koji Takahashi
PURPOSE: To explore the utility of the apparent diffusion coefficient (ADC) and tumor volume to predict histological grade and prognosis in patients with choroid plexus tumors. METHODS: ADC and tumor volumes were retrospectively evaluated in 25 patients with choroid plexus papilloma (CPP; WHO grade 1 [n = 13]), atypical CPP (aCPP; grade 2 [n = 8]), or choroid plexus carcinoma (grade 3 [n = 4]) The prognostic roles of ADC and tumor volume were assessed...
May 2018: Neuroradiology
https://www.readbyqxmd.com/read/29452330/atypical-teratoid-rhabdoid-tumor-after-in-vitro-fertilization-illustrative-case-report-and-systematic-literature-review
#4
REVIEW
Adomas Bunevicius, Algimantas Matukevicius, Vytenis Deltuva, Inga Gudinaviciene, Darius Pranys, Arimantas Tamasauskas
OBJECTIVE: In vitro fertilization (IVF) is increasingly used for the treatment of infertile couples worldwide. The association between IVF and cancer risk in offspring is conflicting. We present a case of atypical teratoid/rhabdoid tumor (AT/RT) in a girl conceived by IVF and present results of systematic review of literature of primary intracranial neoplasms diagnosed in children conceived by IVF. METHODS: A systematic review of literature was conducted on April 12, 2017, to identify previously published reports of intracranial brain tumors in patients conceived after IVF...
May 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29402204/glomeruloid-microvascular-proliferation-desmoplasia-and-high-proliferative-index-as-potential-indicators-of-high-grade-canine-choroid-plexus-tumors
#5
Luisa Vera Muscatello, Giancarlo Avallone, Fabienne Serra, Torsten Seuberlich, Maria Teresa Mandara, Silvia Sisó, Barbara Brunetti, Anna Oevermann
Choroid plexus tumors (CPT) are intraventricular neoplasms accounting for 10% of all primary central nervous system tumors in dogs. They are frequently classified according to the human WHO classification into choroid plexus papilloma (CPP, grade I), atypical CPP (aCPP, grade II), and choroid plexus carcinoma (CPC, grade III). Histological features observed in canine CPT such as increased vascular density (IVD) and glomeruloid microvascular proliferation (GMVP) are not part of the WHO classification. This multi-centric study aimed to investigate tumor-associated vascular hyperplasia in dogs by determining the prevalence of GMVP and IVD in 52 canine CPT and their association with tumor grade...
May 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29165519/-central-nervous-system-infection-by-bartonella-henselae-associated-with-a-choroid-plexus-papilloma
#6
Natalia Barnafi, Natalia Conca, Cecilia von Borries, Isabel Fuentes, Francisca Montoya, Elisa Alcalde
Bartonella henselae infection is a prevalent illness in Chile. It presents generally as a cat scratch disease or as a prolonged fever syndrome. There are atypical manifestations, which include central nervous system, bone, cardiac and hepato-esplenic compromised. We present an adolescent case with a history of fever, vomiting and ataxia, whose diagnosis was a central nervous system infection by Bartonella henselae associated with a choroid plexus papilloma. This case corresponds to an unusual presentation, with a challenging diagnosis...
August 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/29100949/plasticity-of-the-human-visual-brain-after-early-cortical-lesion
#7
K Mikellidou, R Arrighi, G Aghakhanyan, F Tinelli, F Frijia, S Crespi, F De Masi, D Montanaro, M C Morrone
In adults, partial damage to V1 or optic radiations abolishes perception in the corresponding part of the visual field, causing a scotoma. However, it is widely accepted that the developing cortex has superior capacities to reorganize following an early lesion to endorse adaptive plasticity. Here we report a single patient case (G.S.) with near normal central field vision despite a massive unilateral lesion to the optic radiations acquired early in life. The patient underwent surgical removal of a right hemisphere parieto-temporal-occipital atypical choroid plexus papilloma of the right lateral ventricle at four months of age, which presumably altered the visual pathways during in utero development...
October 31, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28841111/spinal-drop-metastasis-from-a-benign-fourth-ventricular-choroid-plexus-papilloma-in-a-pediatric-patient-case-report
#8
REVIEW
Ramin A Morshed, Darryl Lau, Peter P Sun, Lauren R Ostling
Choroid plexus papillomas (CPPs) are typically benign tumors that can occur in any age group but are more commonly found in pediatric patients. Although these tumors are benign, there are several reports in adult patients of distant metastases present either at the time of diagnosis or occurring months to years after initial resection. Here, the authors report the case of a 14-year-old boy who presented with symptoms of elevated intracranial pressure due to obstructive hydrocephalus that was caused by a large fourth ventricular mass...
November 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28783147/marrow-ablative-chemotherapy-followed-by-tandem-autologous-hematopoietic-cell-transplantation-in-pediatric-patients-with-malignant-brain-tumors
#9
J A Guerra, G Dhall, A Marachelian, E Castillo, J Malvar, K Wong, R Sposto, J L Finlay
To improve survival in young children with malignant brain tumors, irradiation-avoiding or -minimizing marrow-ablative chemotherapy (HDCx) with autologous hematopoietic cell transplantation (AuHCT) has been investigated. We evaluated the outcome of 44 children with malignant brain tumors treated with HDCx and tandem AuHCT at Children's Hospital Los Angeles between June 1999 and July 2012. Forty-four children with malignant brain tumors were studied. Twenty-one had medulloblastoma/primitive neuro-ectodermal tumor, eight atypical teratoid/rhabdoid tumor (ATRT), five high-grade glioma, four malignant germ cell tumor, three ependymoma and three choroid plexus carcinoma...
November 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28686125/atypical-choroid-plexus-papilloma-spontaneous-resolution-of-diffuse-leptomeningeal-contrast-enhancement-after-primary-tumor-removal-in-2-pediatric-cases
#10
Marcello Scala, Giovanni Morana, Claudia Milanaccio, Marco Pavanello, Paolo Nozza, Maria Luisa Garrè
Atypical choroid plexus papillomas can metastasize in the form of leptomeningeal seeding. Postoperative chemotherapy is the recommended first-line treatment when gross-total removal is not achieved or in cases of disseminated disease. Here the authors report on 2 children with atypical choroid plexus papillomas and MRI findings of diffuse leptomeningeal enhancement at diagnosis, later presenting with spontaneous resolution of the leptomeningeal involvement after removal of the primary lesions. Observations in this report expand our knowledge about the natural history and biological behavior of these tumors and highlight the role of close neuroimaging surveillance in the management of atypical choroid plexus papillomas in cases with MRI evidence of diffuse leptomeningeal enhancement at presentation...
September 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28677107/a-french-retrospective-study-on-clinical-outcome-in-102-choroid-plexus-tumors-in-children
#11
A Siegfried, S Morin, C Munzer, M B Delisle, M Gambart, S Puget, C A Maurage, C Miquel, C Dufour, P Leblond, N André, D Figarella Branger, J Kanold, J-L Kemeny, C Icher, A Vital, E Uro Coste, A I Bertozzi
The aim of this study was to review and describe therapeutic approaches in children with choroid plexus tumor (CPT) based on a nationwide series. The World Health Organization classification subdivides these rare tumors into three histological subtypes corresponding to three grades of malignancy: low grade (grade I) choroid plexus papilloma (CPP), intermediate grade (grade II) atypical choroid plexus papilloma (aCPP) and high grade (grade III) choroid plexus carcinoma (CPC). This retrospective study included 102 French children younger than 18 years, treated from 2000 to 2012: 54 CPP, 26 aCPP and 22 CPC...
October 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28454280/imaging-findings-of-extraventricular-choroid-plexus-papillomas-a-study-of-10-cases
#12
Yuzhen Shi, Xiaoshuang Li, Xiao Chen, Yiming Xu, Genji Bo, Hao Zhou, Yongkang Liu, Guoxing Zhou, Zhongqiu Wang
Extraventricular choroid plexus papillomas (CPPs) are rare. In this study, we reveal the imaging findings of CPPs located in extraventricular sites. The imaging findings of 11 masses [10 masses on magnetic resonance imaging (MRI) and one mass on computed tomography (CT)] of extraventricular CPP in 10 patients were retrospectively observed. The mass site, size, contour, signal intensity, cystic or solid appearance, calcification, capsules, degree and pattern of enhancement, and hydrocephalus were evaluated based on CT or MRI...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28421905/ultrasonic-elastography-exploration-of-the-foetal-brain-a-case-of-atypical-choroid-plexus-papilloma
#13
Caroline Diguisto, Emmanuel G Simon, Samuel Callé, Redouane Ternifi, Jean-Pierre Remeniéras, Philipe Hervé, Franck Perrotin
No abstract text is available yet for this article.
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28358248/atypical-choroid-plexus-papilloma-clinicopathological-and-neuroradiological-features
#14
Yu-Zhen Shi, Mao-Zhen Chen, Wei Huang, Li-Li Guo, Xiao Chen, Dan Kong, Ying-Ying Zhuang, Yi-Ming Xu, Rui-Rui Zhang, Gen-Ji Bo, Zhong-Qiu Wang
Background Atypical choroid plexus papilloma (APP) is a rare, newly introduced entity with intermediate characteristics. To date, few reports have revealed the magnetic resonance (MR) findings. Purpose To analyze the clinicopathological and MR features of APP. Material and Methods The clinicopathological data and preoperative MR images of six patients with pathologically proven APP were retrospectively reviewed. The MR features including tumor location, contour, signal intensity, degree of enhancement, intratumoral cysts, and necrosis; and flow voids, borders, peritumoral edema, and associated hydrocephalus were analyzed...
August 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28291373/neoadjuvant-chemotherapy-for-atypical-teratoid-rhabdoid-tumors-case-report
#15
Meena Thatikunta, Ian Mutchnick, Jennifer Elster, Matthew P Thompson, Michael A Huang, Aaron C Spalding, Thomas Moriarty
Atypical teratoid rhabdoid tumors (ATRTs) are a rare pediatric brain tumor with high mortality rate. Several large series have reported achieving gross-total resection (GTR) in less than 50% of patients due to the lesions' large size, vascularity, and limited blood volume in young patients. While neoadjuvant chemotherapy for choroid plexus carcinomas in pediatric patients has become widely accepted, it has not been used as widely for other pediatric brain tumors. To the best of the authors' knowledge, there are only 3 published cases of neoadjuvant chemotherapy for ATRTs...
May 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28290001/choroid-plexus-tumors-in-adult-and-pediatric-populations-the-cleveland-clinic-and-university-hospitals-experience
#16
Michal Bahar, Hasan Hashem, Tanya Tekautz, Sarah Worley, Anne Tang, Peter de Blank, Johannes Wolff
Choroid plexus tumors (CPT) are rare neoplasms accounting for 1-4% of all pediatric brain tumors. They are divided into choroid plexus papilloma (CPP), atypical choroid plexus papilloma (APP) and choroid plexus carcinoma (CPC). CPTs are known to primarily affect children less than 2 years of age. Gross total resection is the most important predictor of survival especially in CPC. Although small case series have been published, limited clinical data are available to describe treatment and outcome of CPTs. More clinical data would be necessary to complete the picture, particularly in populations that are not age limited...
May 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28180935/clinicopathological-features-and-microsurgical-outcomes-for-giant-pediatric-intracranial-tumor-in-60-consecutive-cases
#17
Ailing Guo, Vigneyshwar Suresh, Xianzhi Liu, Fuyou Guo
PURPOSE: Giant pediatric intracranial tumor (GPIT) remains to be a challenging disease with high morbidity and mortality. METHODS: The clinical data of 60 patients under 18 years of age operated on with GPIT (≥5 cm in diameter) were retrospectively analyzed. RESULTS: Gross total resection was achieved in 46 cases (77%) and subtotal resection was obtained in 14 cases (23%). Ninety percent (47/52) of the cases with obstructive hydrocephalus were resolved remarkably and only 10% (5/52) of the patients needed a ventriculoperitoneal shunt after tumor resection...
March 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28062214/in-utero-exposure-to-atypical-antipsychotic-drug-risperidone-effects-on-fetal-neurotoxicity-in-hippocampal-region-and-cognitive-impairment-in-rat-offspring
#18
K P Singh, Manoj Kr Singh
Clinical studies indicate that about one-third of pregnant women with psychotic symptoms are exposed to either typical or atypical antipsychotic drugs (APDs). Reports on prenatal subject/model are lacking hence, the present study was undertaken to investigate the effect of prenatal exposure to risperidone (RIS) on the fetal hippocampus, and their related functional changes in young rat offspring. In this study, pregnant Wistar rats were exposed to equivalent therapeutic doses of RIS at 0.8mg/kg, 1.0mg/kg, and 2...
April 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28025236/otx2-defines-a-subgroup-of-atypical-teratoid-rhabdoid-tumors-with-close-relationship-to-choroid-plexus-tumors
#19
Anna Sophia Japp, Ludger Klein-Hitpass, Dorota Denkhaus, Torsten Pietsch
Atypical teratoid rhabdoid tumors (ATRT) are highly malignant brain tumors of early childhood that have been regarded as a homogenous entity characterized by inactivation of the SMARCB1/INI1 or SMARCA4/BRG1 genes as the only characteristic alteration. Recent studies suggest that similar to other embryonal tumors ATRT can also be divided into subgroups based on their mRNA or methylation profiles. Using microarray-based expression analysis of 12 patient ATRT specimens we demonstrated the existence of 2 subgroups of ATRT...
January 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/27506402/choroid-plexus-papillomas-of-the-cerebellopontine-angle
#20
Wei Luo, Hai Liu, Jiaxin Li, Jun Yang, Yulun Xu
OBJECTIVE: Choroid plexus papillomas (CPPs) of the cerebellopontine angle (CPA) are extremely rare. We present a series of 21 cases operated on in the last 7 years at our institution. METHODS: During the period from January 2008 to October 2015, we encountered 102 histologically established cases of CPPs, of which 21 were located in the CPA region. Clinical profiles, radiologic features, surgical procedures, intraoperative findings, and outcomes were extracted from the patient records and neuroimaging data...
November 2016: World Neurosurgery
keyword
keyword
61571
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"