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Atypical Lesions in Virchow-Robin Spaces: A Case Report.
Cureus
January 2025
Anesthesiology, Universidad Abierta Interamericana, Buenos Aires, ARG.
The differentiation between benign and malignant brain lesions remains a fundamental challenge in modern neuroimaging. This case highlights a rare presentation of ectatic Virchow-Robin spaces (VRS), which mimicked tumefactive brain lesions and required a comprehensive diagnostic evaluation to exclude neoplastic, infectious, and inflammatory processes. A 37-year-old female presented with progressive headache, cognitive impairment, and facial pain.
View Article and Find Full Text PDFDiffusion tensor imaging with free-water correction reveals distinctions between severe and attenuated subtypes in Mucopolysaccharidosis type I.
J Inherit Metab Dis
January 2025
Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA.
Mucopolysaccharidosis type I (MPS I) is an inherited lysosomal storage disorder leading to deleterious brain effects. While animal models suggested that MPS I severely affects white matter (WM), whole-brain diffusion tensor imaging (DTI) analysis was not performed due to MPS-related morphological abnormalities. 3T DTI data from 28 severe (MPS IH, treated with hematopoietic stem cell transplantation-HSCT), 16 attenuated MPS I patients (MPS IA) enrolled under the study protocol NCT01870375, and 27 healthy controls (HC) were analyzed using the free-water correction (FWC) method to resolve macrostructural partial volume effects and unravel differences in DTI metrics accounting for microstructural abnormalities.
View Article and Find Full Text PDFIdentification of a T2-hyperintense Perivascular Space in Brain Arteriovenous Malformations.
In Vivo
December 2024
Group Brain Vasculature and Perivascular Niche, Division of Experimental and Translational Neuroscience, Krembil Brain Institute, Krembil Research Institute, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada;
Background/aim: Brain arteriovenous malformations (AVMs) are vascular malformations characterized by dysmorphic, aberrant vasculature. During previous surgeries of compact nidus brain AVMs (representing the majority of cases), we have observed a "shiny" plane between nidal and perinidal AVM vessels and the surrounding grey and white matter and hypothesized that preoperative neuroimaging of brain AVMs may show a neuroradiological correlate of these intraoperative observations.
Patients And Methods: We retrospectively reviewed and analyzed multiplanar and multisequence 3-Tesla magnetic resonance (3T MR) imaging in five consecutive brain AVMs with special attention on imaging characteristics of the brain-AVM interface, i.
Sleep and perivascular disruption: An illustrative case of severe sleep apnea, an enlarged Virchow-Robin space, and contralateral asymmetric periodic limb movements.
Sleep Med
October 2023
Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.
Article Synopsis
- Virchow-Robin spaces (VRS) are linked to issues like poor sleep quality, impaired glymphatic function, and various neurological impairments.
- A case study of a young male with severe untreated sleep apnea and related sleep disorders revealed prominent VRS in the opposite basal ganglia.
- The case highlights the complicated relationship between sleep problems, the formation of VRS, and the resulting sleep disorders, suggesting that these factors may influence each other mutually.
Deep-learning-based segmentation of perivascular spaces on T2-Weighted 3T magnetic resonance images.
Front Aging Neurosci
August 2024
Department of Radiology, The First Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China.
Purpose: Studying perivascular spaces (PVSs) is important for understanding the pathogenesis and pathological changes of neurological disorders. Although some methods for automated segmentation of PVSs have been proposed, most of them were based on 7T MR images that were majorly acquired in healthy young people. Notably, 7T MR imaging is rarely used in clinical practice.
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