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  1. Article ; Online: RadioGraphics

    Sarbu, Nicolae / Shih, Robert Y / Oleaga, Laura / Smirniotopoulos, James G

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2020  Volume 40, Issue 3, Page(s) E4–E7

    Abstract: Editor's Note.- ...

    Abstract Editor's Note.-
    MeSH term(s) Diagnosis, Differential ; Humans ; Leukoencephalopathies ; Radiology
    Language English
    Publishing date 2020-05-01
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.2020190204
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  2. Article ; Online: Magnetic resonance imaging in myelopathy: a pictorial review.

    Sarbu, Nicolae / Lolli, Valentina / Smirniotopoulos, James G

    Clinical imaging

    2019  Volume 57, Page(s) 56–68

    Abstract: Myelopathies have multiple causes and broad differential diagnoses, including demyelinating, metabolic, vascular and neoplastic disorders, often with distinctive imaging manifestations. Compressive myelopathy, especially of degenerative and neoplastic ... ...

    Abstract Myelopathies have multiple causes and broad differential diagnoses, including demyelinating, metabolic, vascular and neoplastic disorders, often with distinctive imaging manifestations. Compressive myelopathy, especially of degenerative and neoplastic origin, is the most common cause of myelopathy, followed by inflammatory disorders such as multiple sclerosis, acute disseminating encephalomyelitis, neuromyelitis optica, and transverse myelitis of other etiologies. An accurate and early diagnosis will guide the treatment and will provide information about the prognosis of the patient. The aim of this review is to illustrate the magnetic resonance imaging features of different etiologies of myelopathy.
    MeSH term(s) Diagnosis, Differential ; Humans ; Magnetic Resonance Imaging/adverse effects ; Multiple Sclerosis/complications ; Multiple Sclerosis/diagnostic imaging ; Myelitis, Transverse/diagnostic imaging ; Neuromyelitis Optica ; Spinal Cord/pathology ; Spinal Cord Compression/diagnostic imaging ; Spinal Cord Diseases/diagnostic imaging ; Spinal Cord Diseases/etiology
    Language English
    Publishing date 2019-05-17
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1028123-x
    ISSN 1873-4499 ; 0899-7071
    ISSN (online) 1873-4499
    ISSN 0899-7071
    DOI 10.1016/j.clinimag.2019.05.002
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  3. Article ; Online: Posterior Fossa Tumors in Adult Patients.

    Shih, Robert Y / Smirniotopoulos, James G

    Neuroimaging clinics of North America

    2016  Volume 26, Issue 4, Page(s) 493–510

    Abstract: In adults, the most common expansile "mass" lesion in the posterior fossa is a subacute stroke, whereas the most common neoplastic lesion in the posterior fossa is cerebellar metastasis (intra-axial) or vestibular schwannoma (extra-axial). Those diseases ...

    Abstract In adults, the most common expansile "mass" lesion in the posterior fossa is a subacute stroke, whereas the most common neoplastic lesion in the posterior fossa is cerebellar metastasis (intra-axial) or vestibular schwannoma (extra-axial). Those diseases fall outside the scope of this article, which focuses on primary intra-axial tumors of the posterior fossa in adults. This category of tumors is uncommon and more frequently encountered in children. This article reviews tumors of the cerebellum, brainstem, and fourth ventricle that are seen in adult patients, following categories from the 2007 World Health Organization classification of central nervous system tumors.
    MeSH term(s) Adult ; Brain/diagnostic imaging ; Humans ; Infratentorial Neoplasms/diagnostic imaging ; Neuroimaging/methods ; Tomography, X-Ray Computed
    Language English
    Publishing date 2016-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1314594-0
    ISSN 1557-9867 ; 1052-5149
    ISSN (online) 1557-9867
    ISSN 1052-5149
    DOI 10.1016/j.nic.2016.06.003
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  4. Article: Extra-axial brain tumors.

    Rapalino, Otto / Smirniotopoulos, James G

    Handbook of clinical neurology

    2016  Volume 135, Page(s) 275–291

    Abstract: ... behavior (e.g., hemangiopericytoma or dural-based metastases). Many neoplasms that typically affect ...

    Abstract Extra-axial brain tumors are the most common adult intracranial neoplasms and encompass a broad spectrum of pathologic subtypes. Meningiomas are the most common extra-axial brain tumor (approximately one-third of all intracranial neoplasms) and typically present as slowly growing dural-based masses. Benign meningiomas are very common, and may occasionally be difficult to differentiate from more aggressive subtypes (i.e., atypical or malignant varieties) or other dural-based masses with more aggressive biologic behavior (e.g., hemangiopericytoma or dural-based metastases). Many neoplasms that typically affect the brain parenchyma (intra-axial), such as gliomas, may also present with primary or secondary extra-axial involvement. This chapter provides a general and concise overview of the common types of extra-axial tumors and their typical imaging features.
    MeSH term(s) Brain Neoplasms/classification ; Brain Neoplasms/diagnostic imaging ; Brain Neoplasms/epidemiology ; Brain Neoplasms/therapy ; Humans ; Image Processing, Computer-Assisted ; Meningeal Neoplasms/diagnostic imaging ; Meningeal Neoplasms/therapy ; Meningioma/diagnostic imaging ; Meningioma/therapy ; Neuroimaging ; Parenchymal Tissue/pathology
    Language English
    Publishing date 2016
    Publishing country Netherlands
    Document type Journal Article ; Review
    ISSN 0072-9752
    ISSN 0072-9752
    DOI 10.1016/B978-0-444-53485-9.00015-5
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  5. Article ; Online: Extraparenchymal Lesions in Adults.

    Drake-Pérez, Marta / Smirniotopoulos, James G

    Neuroimaging clinics of North America

    2016  Volume 26, Issue 4, Page(s) 621–646

    Abstract: 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 ... ...

    Abstract 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.
    MeSH term(s) Adult ; Central Nervous System Cysts/diagnostic imaging ; Diagnostic Imaging/methods ; Hemangiopericytoma/diagnostic imaging ; Humans ; Meningeal Neoplasms/diagnostic imaging ; Meningioma/diagnostic imaging ; Neuroimaging/methods ; Pituitary Neoplasms/diagnostic imaging
    Language English
    Publishing date 2016-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1314594-0
    ISSN 1557-9867 ; 1052-5149
    ISSN (online) 1557-9867
    ISSN 1052-5149
    DOI 10.1016/j.nic.2016.06.009
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  6. Article: Neuroimaging of phakomatoses: Sturge-Weber syndrome, tuberous sclerosis, von Hippel-Lindau syndrome.

    Smirniotopoulos, James G

    Neuroimaging clinics of North America

    2004  Volume 14, Issue 2, Page(s) 171–83, vii

    Abstract: This article discusses the imaging characteristics of Sturge-Weber syndrome, tuberous sclerosis, and von Hippel-Lindau syndrome. ...

    Abstract This article discusses the imaging characteristics of Sturge-Weber syndrome, tuberous sclerosis, and von Hippel-Lindau syndrome.
    MeSH term(s) Brain/diagnostic imaging ; Brain/pathology ; Cerebrovascular Circulation ; Face/pathology ; Humans ; Neurocutaneous Syndromes/diagnostic imaging ; Neurocutaneous Syndromes/pathology ; Neurocutaneous Syndromes/physiopathology ; Radiography ; Spinal Cord/diagnostic imaging ; Spinal Cord/pathology
    Language English
    Publishing date 2004-05
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1314594-0
    ISSN 1052-5149
    ISSN 1052-5149
    DOI 10.1016/j.nic.2004.03.011
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  7. Article ; Online: Neuroimaging of neurocutaneous diseases.

    Nandigam, Kaveer / Mechtler, Laszlo L / Smirniotopoulos, James G

    Neurologic clinics

    2014  Volume 32, Issue 1, Page(s) 159–192

    Abstract: An in-depth knowledge of the imaging characteristics of the common neurocutaneous diseases (NCD) described in this article will help neurologists understand the screening imaging modalities in these patients. The future of neuroimaging is geared towards ... ...

    Abstract An in-depth knowledge of the imaging characteristics of the common neurocutaneous diseases (NCD) described in this article will help neurologists understand the screening imaging modalities in these patients. The future of neuroimaging is geared towards developing and refining magnetic resonance imaging (MRI) sequences. The detection of tumors in NCD has greatly improved with availability of high-field strength 3T MRI machines. Neuroimaging will remain at the heart and soul of the multidisciplinary care of such complex diagnoses to guide early detection and monitor treatment.
    MeSH term(s) Humans ; Neurocutaneous Syndromes/diagnosis ; Neuroimaging/methods
    Language English
    Publishing date 2014-02
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1013148-6
    ISSN 1557-9875 ; 0733-8619
    ISSN (online) 1557-9875
    ISSN 0733-8619
    DOI 10.1016/j.ncl.2013.07.003
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  8. Article ; Online: Imaging evaluation of demyelinating processes of the central nervous system.

    Smith, Alice Boyd / Smirniotopoulos, James G

    Postgraduate medical journal

    2010  Volume 86, Issue 1014, Page(s) 218–229

    Abstract: Demyelinating processes involving the central nervous system have a variety of aetiologies and can be separated into primary and secondary demyelinating processes. The classic example of primary demyelination is multiple sclerosis. Secondary ... ...

    Abstract Demyelinating processes involving the central nervous system have a variety of aetiologies and can be separated into primary and secondary demyelinating processes. The classic example of primary demyelination is multiple sclerosis. Secondary demyelination, where the aetiology is known, includes infectious, metabolic and toxic disease processes. The underlying component of all demyelinating disorders is damage to the myelin sheath and/or the oligodendrocyte, the cell forming the myelin sheath. These processes often have similar imaging findings, making knowledge of the patient's history, physical examination and laboratory evaluation imperative for developing a differential diagnosis. This pictorial essay provides a review of the imaging of these diverse disorders.
    MeSH term(s) Central Nervous System Diseases/pathology ; Demyelinating Diseases/pathology ; Encephalomyelitis/pathology ; Humans ; Leukoencephalopathy, Progressive Multifocal/pathology ; Magnetic Resonance Imaging ; Multiple Sclerosis/pathology ; Neuromyelitis Optica/pathology ; Tomography, X-Ray Computed ; Wernicke Encephalopathy/pathology
    Language English
    Publishing date 2010-04
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 80325-x
    ISSN 1469-0756 ; 0032-5473
    ISSN (online) 1469-0756
    ISSN 0032-5473
    DOI 10.1136/pgmj.2009.087452
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  9. Article ; Online: Tentorial venous anatomy of mice and humans.

    Lookian, Pashayar P / Chandrashekhar, Vikram / Cappadona, Anthony / Bryant, Jean-Paul / Chandrashekhar, Vibhu / Tunacao, Jessa M / Donahue, Danielle R / Munasinghe, Jeeva P / Smirniotopoulos, James G / Heiss, John D / Zhuang, Zhengping / Rosenblum, Jared S

    JCI insight

    2021  Volume 6, Issue 21

    Abstract: We recently described a transtentorial venous system (TTVS), which to our knowledge was previously unknown, connecting venous drainage throughout the brain in humans. Prior to this finding, it was believed that the embryologic tentorial plexus regresses, ...

    Abstract We recently described a transtentorial venous system (TTVS), which to our knowledge was previously unknown, connecting venous drainage throughout the brain in humans. Prior to this finding, it was believed that the embryologic tentorial plexus regresses, resulting in a largely avascular tentorium. Our finding contradicted this understanding and necessitated further investigation into the development of the TTVS. Herein, we sought to investigate mice as a model to study the development of this system. First, using vascular casting and ex vivo micro-CT, we demonstrated that this TTVS is conserved in adult mice. Next, using high-resolution MRI, we identified the primitive tentorial venous plexus in the murine embryo at day 14.5. We also found that, at this embryologic stage, the tentorial plexus drains the choroid plexus. Finally, using vascular casting and micro-CT, we found that the TTVS is the dominant venous drainage in the early postnatal period (P8). Herein, we demonstrated that the TTVS is conserved between mice and humans, and we present a longitudinal study of its development. In addition, our findings establish mice as a translational model for further study of this system and its relationship to intracranial physiology.
    MeSH term(s) Animals ; Humans ; Mice ; Veins/anatomy & histology ; Veins/diagnostic imaging
    Language English
    Publishing date 2021-11-08
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Intramural ; Research Support, Non-U.S. Gov't
    ISSN 2379-3708
    ISSN (online) 2379-3708
    DOI 10.1172/jci.insight.151222
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  10. Article ; Online: Virtual multi-institutional tumor board: a strategy for personalized diagnoses and management of rare CNS tumors.

    Rogers, James L / Wall, Thomas / Acquaye-Mallory, Alvina A / Boris, Lisa / Kim, Yeonju / Aldape, Kenneth / Quezado, Martha M / Butman, John A / Smirniotopoulos, James G / Chaudhry, Huma / Tsien, Christina I / Chittiboina, Prashant / Zaghloul, Kareem / Aboud, Orwa / Avgeropoulos, Nicholas G / Burton, Eric C / Cachia, David M / Dixit, Karan S / Drappatz, Jan /
    Dunbar, Erin M / Forsyth, Peter / Komlodi-Pasztor, Edina / Mandel, Jacob / Ozer, Byram H / Lee, Eudocia Q / Ranjan, Surabhi / Lukas, Rimas V / Raygada, Margarita / Salacz, Michael E / Smith-Cohn, Matthew A / Snyder, James / Soldatos, Ariane / Theeler, Brett J / Widemann, Brigitte C / Camphausen, Kevin A / Heiss, John D / Armstrong, Terri S / Gilbert, Mark R / Penas-Prado, Marta

    Journal of neuro-oncology

    2024  Volume 167, Issue 2, Page(s) 349–359

    Abstract: Purpose: Multidisciplinary tumor boards (MTBs) integrate clinical, molecular, and radiological information and facilitate coordination of neuro-oncology care. During the COVID-19 pandemic, our MTB transitioned to a virtual and multi-institutional format. ...

    Abstract Purpose: Multidisciplinary tumor boards (MTBs) integrate clinical, molecular, and radiological information and facilitate coordination of neuro-oncology care. During the COVID-19 pandemic, our MTB transitioned to a virtual and multi-institutional format. We hypothesized that this expansion would allow expert review of challenging neuro-oncology cases and contribute to the care of patients with limited access to specialized centers.
    Methods: We retrospectively reviewed records from virtual MTBs held between 04/2020-03/2021. Data collected included measures of potential clinical impact, including referrals to observational or therapeutic studies, referrals for specialized neuropathology analysis, and whether molecular findings led to a change in diagnosis and/or guided management suggestions.
    Results: During 25 meetings, 32 presenters discussed 44 cases. Approximately half (n = 20; 48%) involved a rare central nervous system (CNS) tumor. In 21% (n = 9) the diagnosis was changed or refined based on molecular profiling obtained at the NIH and in 36% (n = 15) molecular findings guided management. Clinical trial suggestions were offered to 31% (n = 13), enrollment in the observational NCI Natural History Study to 21% (n = 9), neuropathology review and molecular testing at the NIH to 17% (n = 7), and all received management suggestions.
    Conclusion: Virtual multi-institutional MTBs enable remote expert review of CNS tumors. We propose them as a strategy to facilitate expert opinions from specialized centers, especially for rare CNS tumors, helping mitigate geographic barriers to patient care and serving as a pre-screening tool for studies. Advanced molecular testing is key to obtaining a precise diagnosis, discovering potentially actionable targets, and guiding management.
    MeSH term(s) Humans ; Retrospective Studies ; Pandemics ; Central Nervous System Neoplasms/diagnosis ; Central Nervous System Neoplasms/therapy ; Patient Care Team ; Referral and Consultation
    Language English
    Publishing date 2024-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604875-4
    ISSN 1573-7373 ; 0167-594X
    ISSN (online) 1573-7373
    ISSN 0167-594X
    DOI 10.1007/s11060-024-04613-6
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