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Encephalitis by Epstein Barr Virus in a Transplant Immunosuppressed Patient.
Rev Med Chil
November 2024
Laboratorio de Biología Molecular, Hospital Base de Valdivia, Valdivia, Chile.
Encephalitis due to Epstein-Barr Virus (EBV) is a rare condition that primarily affects children and immunosuppressed patients. Diagnosing EBV encephalitis can be challenging due to its nonspecific clinical presentation and the lack of confirmatory tests. We present the case of a 66-year-old woman with a history of kidney transplantation who was admitted due to progressive subacute mental deterioration, preceded by vertigo and without fever.
View Article and Find Full Text PDFTargeting EPHB2/ABL1 restores antitumor immunity in preclinical models of ependymoma.
Proc Natl Acad Sci U S A
January 2025
Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114.
Ependymoma (EPN) is a common form of brain tumor in children, often resistant to available cytotoxic therapies. Molecular profiling studies have led to a better understanding of EPN subtypes and revealed a critical role of oncogenes ZFTA-RELA fusion and EPHB2 in supratentorial ependymoma (ST-EPN). However, the immune system's role in tumor progression and response to therapy remains poorly understood.
View Article and Find Full Text PDFThe added value of b0-DWI analysis in the diagnosis of cavitating lacunes when T2-weighted spin-echo is unavailable.
Eur J Radiol
January 2025
Regional University Hospital Centre of Orléans, Diagnostic Neuroradiology Department, France. Electronic address:
Purpose: Silent brain infarcts, sometimes appearing as incidental lacunes in patients with unknown history of vascular event, are linked to dementia, gait disturbances and depression. We observed that some cavitating lacunes were only visible on b0-diffusion-weighted-imaging (b0-DWI: T2-weighted without diffusion gradients) when T2-weighted-spin-echo (T2-SE) was unavailable. We aimed to evaluate the additional value of b0-DWI in detecting cavitating lacunes.
View Article and Find Full Text PDFImpact of Pediatric Posterior Fossa Tumor Treatments on Working Memory Tracts Using Resting-State fMRI and Tractography.
J Neuroimaging
January 2025
Toulouse NeuroImaging Center (ToNIC), INSERM, University of Toulouse Paul Sabatier, Toulouse, France.
Background And Purpose: Working memory, a primary cognitive domain, is often impaired in pediatric brain tumor survivors, affecting their attention and processing speed. This study investigated the long-term effects of treatments, including surgery, radiotherapy (RT), and chemotherapy (CT), on working memory tracts in children with posterior fossa tumors (PFTs) using resting-state functional MRI (rs-fMRI) and diffusion MRI tractography.
Methods: This study included 16 medulloblastoma (MB) survivors treated with postoperative RT and CT, 14 pilocytic astrocytoma (PA) survivors treated with surgery alone, and 16 healthy controls from the Imaging Memory after Pediatric Cancer in children, adolescents, and young adults study (NCT04324450).
Epileptic Seizures As the Sole Presentation of a Radiologically Isolated Syndrome: A Case Report and Review of the Literature.
Cureus
December 2024
Department of Neurology, Cheikh Khalifa International University Hospital, Faculty of Medicine, Mohamed VI University of Health Sciences (UM6SS), Casablanca, MAR.
Multiple sclerosis (MS) is the most prevalent long-term inflammatory condition affecting the central nervous system in adults. However, seizures are rarely described as the first presentation of MS or as a sole manifestation of radiologically isolated syndrome (RIS) or clinically isolated syndrome (CIS). The diagnosis of MS typically requires clinical evidence of neurological deficits and supportive radiological findings; however, RIS is characterized by incidental magnetic resonance imaging (MRI) findings suggestive of MS in the absence of clinical symptoms.
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