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Neuroimaging Clinics of North America

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https://www.readbyqxmd.com/read/27889028/pediatric-brain-tumors-update-imaging-characterization-of-pediatric-brain-tumors-in-the-central-nervous-system-including-findings-on-advanced-mr-imaging-techniques
#1
EDITORIAL
Lara A Brandão
No abstract text is available yet for this article.
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889027/pediatric-brain-tumors
#2
EDITORIAL
Suresh K Mukherji
No abstract text is available yet for this article.
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889026/imaging-of-the-sella-and-parasellar-region-in-the-pediatric-population
#3
REVIEW
Daniel P Seeburg, Marjolein H G Dremmen, Thierry A G M Huisman
Masses in the sella and parasellar region comprise about 10% of all pediatric brain tumors but type and frequency differs from those in adults. Imaging is critical for diagnosis and characterization of these lesions. By assessing the site of origin, signal and contrast enhancement characteristics, and the presence or absence of characteristic patterns, differential diagnosis can narrow the possibilities. The clinical presentation is often characteristic for lesion type and should be considered. This article summarizes the characteristic imaging features of the most frequent pediatric tumors and tumor-mimicking lesions in children in this region...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889025/pineal-region-masses-in-pediatric-patients
#4
REVIEW
Benita Tamrazi, Marvin Nelson, Stefan Blüml
A review of pediatric pineal region tumors is provided with emphasis on advanced imaging techniques. The 3 major categories of pineal region tumors include germ cell tumors, pineal parenchymal tumors, and tumors arising from adjacent structures such as tectal astrocytomas. The clinical presentation, biochemical markers, and imaging of these types of tumors are reviewed.
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889024/brain-tumors-in-the-neonate
#5
REVIEW
Karuna V Shekdar, Erin Simon Schwartz
Brain tumors can develop in the prenatal and neonatal time periods. Neuroimaging studies are crucial for the early detection of prenatal and neonatal brain tumors. Imaging allows for characterization of morphology, as well as the detection of hydrocephalus, local invasion, and distant spread. The imaging features of the more common neonatal brain tumors, including teratomas, choroid plexus tumors, ATRTs, and neoplasm mimics are described.
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889023/supratentorial-tumors-in-pediatric-patients
#6
REVIEW
Carlos Zamora, Thierry A G M Huisman, Izlem Izbudak
The breadth of tumors that can arise in the supratentorial brain in children is extensive. With the exception of those that result in seizures and the highly malignant histologies, supratentorial tumors may come to medical attention later compared with infratentorial tumors, as they are less commonly associated with ventricular obstruction. This article presents an overview of the neuroimaging characteristics of these entities, with particular attention to relevant features that may aid in narrowing the differential diagnosis, including correlation with demographics and clinical presentation...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889022/advanced-mr-imaging-in-pediatric-brain-tumors-clinical-applications
#7
REVIEW
Maarten Lequin, Jeroen Hendrikse
Advanced MR imaging techniques, such as spectroscopy, perfusion, diffusion, and functional imaging, have improved the diagnosis of brain tumors in children and also play an important role in defining surgical as well as therapeutic responses in these patients. In addition to the anatomic or structural information gained with conventional MR imaging sequences, advanced MR imaging techniques also provide physiologic information about tumor morphology, metabolism, and hemodynamics. This article reviews the physiology, techniques, and clinical applications of diffusion-weighted and diffusion tensor imaging, MR spectroscopy, perfusion MR imaging, susceptibility-weighted imaging, and functional MR imaging in the setting of neuro-oncology...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889021/neuroimaging-of-peptide-based-vaccine-therapy-in-pediatric-brain-tumors-initial-experience
#8
REVIEW
Andre D Furtado, Rafael Ceschin, Stefan Blüml, Gary Mason, Regina I Jakacki, Hideho Okada, Ian F Pollack, Ashok Panigrahy
The potential benefits of peptide-based immunotherapy for pediatric brain tumors are under investigation. Treatment-related heterogeneity has resulted in radiographic challenges, including pseudoprogression. Conventional MR imaging has limitations in assessment of different forms of treatment-related heterogeneity, particularly regarding distinguishing true tumor progression from efficacious treatment responses. Advanced neuroimaging techniques, including diffusion magnetic resonance (MR), perfusion MR, and MR spectroscopy, may add value in the assessment of treatment-related heterogeneity...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889020/tumor-and-tumorlike-masses-in-pediatric-patients-that-involve-multiple-spaces
#9
REVIEW
Thangamadhan Bosemani, Andrea Poretti
There are several tumors and tumorlike masses involving multiple spaces in the pediatric brain. Accurate diagnosis of tumors and distinguishing them from tumorlike masses is an important aspect in the diagnostic workup and plays a key role for management and prognosis. Neuroimaging plays an important role in (1) identification of a brain mass, (2) determining its location, (3) demonstrating involvement of a single space versus multiple spaces, and (4) distinguishing a tumor from tumorlike masses.
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889019/extraparenchymal-lesions-in-pediatric-patients
#10
REVIEW
Mary Tenenbaum
Extraparenchymal lesions of childhood include neoplastic and nonneoplastic entities. Lesions affecting children are different from the most common entities affecting adults. Although there are imaging features that are highly suggestive of extraparenchymal origin, it can be difficult to distinguish extraparenchymal from intraparenchymal lesions. MR imaging is the examination of choice for the evaluation of extraparenchymal lesions given greater sensitivity and anatomic detail. Syndromic associations should be considered, especially for unusual lesions in the pediatric age group such as meningioma and schwannoma...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27889018/posterior-fossa-tumors
#11
REVIEW
Lara A Brandão, Tina Young Poussaint
Pediatric brain tumors are the leading cause of death from solid tumors in childhood. The most common posterior fossa tumors in children are medulloblastoma, atypical teratoid/rhabdoid tumor, cerebellar pilocytic astrocytoma, ependymoma, and brainstem glioma. Location, and imaging findings on computed tomography (CT) and conventional MR (cMR) imaging may provide important clues to the most likely diagnosis. Moreover, information obtained from advanced MR imaging techniques increase diagnostic confidence and help distinguish between different histologic tumor types...
February 2017: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712801/adult-brain-tumors-imaging-characterization-of-primary-secondary-and-extraparenchymal-tumors-in-the-central-nervous-system-including-findings-on-advanced-mr-imaging-techniques-as-well-as-treatment-related-abnormalities
#12
https://www.readbyqxmd.com/read/27712800/adult-brain-tumors
#13
Suresh K Mukherji
No abstract text is available yet for this article.
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712799/adult-brain-tumors-and-pseudotumors-interesting-bizarre-cases
#14
Lazaro D Causil, Romy Ames, Paulo Puac, Mauricio Castillo
Some brain tumors results are interesting due to their rarity at presentation and overwhelming imaging characteristics, posing a diagnostic challenge in the eyes of any experienced neuroradiologist. This article focuses on the most important features regarding epidemiology, location, clinical presentation, histopathology, and imaging findings of cases considered "bizarre." A review of the most recent literature dealing with these unusual tumors and pseudotumors is presented, highlighting key points related to the diagnosis, treatments, outcomes, and differential diagnosis...
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712798/advanced-mr-imaging-techniques-in-daily-practice
#15
Marc C Mabray, Soonmee Cha
This article presents a summary of advanced MR imaging techniques and their use in the evaluation of patients with brain tumors. It reviews diffusion-weighted imaging, diffusion-tensor imaging, T2* susceptibility-sensitive imaging, MR spectroscopy, MR perfusion, and functional MR imaging, and discusses their current roles in the evaluation of patients with brain tumors.
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712797/extraparenchymal-lesions-in-adults
#16
Marta Drake-Pérez, James G Smirniotopoulos
This article reviews the most frequent extra-axial tumors of the central nervous system, from the most common meningioma to some uncommon conditions, like Rosai-Dorfman disease, focusing on imaging techniques, pearls, and pitfalls as well as a more practical approach.
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712796/metastasis-in-adult-brain-tumors
#17
REVIEW
Ramon Francisco Barajas, Soonmee Cha
Metastatic cancer to the central nervous system is primarily deposited by hematogenous spread in various anatomically distinct regions: calvarial, pachymeningeal, leptomeningeal, and brain parenchyma. A patient's overall clinical status and the information needed to make treatment decisions are the primary considerations in initial imaging modality selection. Contrast-enhanced MR imaging is the preferred imaging modality. Morphologic MR imaging is limited to delineating anatomic deraignment of tissues. Dynamic susceptibility contrast-enhanced perfusion and diffusion-weighted physiology-based MR imaging sequences have been developed that complement morphologic MR imaging by providing additional diagnostic information...
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712795/posttreatment-evaluation-of-brain-gliomas
#18
Mark F Dalesandro, Jalal B Andre
The imaging of treated gliomas is complicated by a variety of treatment related effects, which can falsely simulate disease improvement or progression. Distinguishing between disease progression and treatment effects is difficult with standard MR imaging pulse sequences and added specificity can be gained by the addition of advanced imaging techniques.
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712794/pretreatment-evaluation-of-glioma
#19
Ali Mohammadzadeh, Vahid Mohammadzadeh, Soheil Kooraki, Houman Sotoudeh, Sakineh Kadivar, Madjid Shakiba, Bahman Rasuli, Ali Borhani, Maryam Mohammadzadeh
Glioma is considered the most common type of primary central nervous system (CNS) tumor. Imaging is crucial for diagnosis, characterization, grading, and therapeutic planning of CNS gliomas. Along with a brief description of conventional computed tomography and magnetic resonance imaging techniques, this article reviews the ever-developing role of modern imaging techniques in preoperative management of CNS gliomas. It discusses current clinical applications, promising features, and limitations of each imaging method...
November 2016: Neuroimaging Clinics of North America
https://www.readbyqxmd.com/read/27712793/lymphomas-part-2
#20
Lara A Brandão, Mauricio Castillo
There are 2 types of central nervous system lymphoma: primary and secondary. Both have variable imaging features making them diagnostic challenges. Furthermore, a patient's immune status significantly alters the imaging findings. Familiarity with typical appearances, variations, and common mimics aids radiologists in appropriately considering lymphoma in the differential diagnosis. Moreover, special types of lymphoma, such as lymphomatosis cerebri, intravascular lymphoma, and lymphomatoid granulomatosis, also are found...
November 2016: Neuroimaging Clinics of North America
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