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Leg Med (Tokyo)
January 2025
Division of Legal Medicine, Department of Community Preventive Medicine, Niigata University Graduate School of Medicine and Dental Sciences, Niigata, Japan; Center of Cause of Death Investigation, Faculty of Medicine, Niigata University, Niigata, Japan.
Subdural hematoma (SDH) is bleeding between the dura mater and the brain surface, often visualized as a crescent-shaped lesion on computed tomography (CT). However, some SDHs can appear as a biconvex hyperdense lesion mimicking an acute epidural hematoma. Encapsulated acute SDH (EASDH), a rare subtype characterized by a fresh hematoma within the subdural fibrous capsule, presents with similar CT findings.
View Article and Find Full Text PDFNeurosurg Rev
January 2025
Department of Neurosurgery, Kumamoto University Hospital, 1-1-1 Honjo, 860-8556, Chuo-ku Kumamoto, Japan.
Indirect bypass using autologous tissue is effective in Moyamoya disease, especially among pediatric patients. This study aimed to evaluate the effectiveness of indirect bypass using DuraGen (absorbable artificial dura mater composed of collagen matrix), as a substitute for autologous tissue in a rat model of chronic cerebral hypoperfusion. Male Wistar rats were subjected to bilateral internal carotid artery occlusion and divided into three groups: a control group without bypass surgery, a group wherein indirect bypass was performed using the temporalis muscle (encephalo-myo-synangiosis [EMS] group), and a group wherein DuraGen was used (Dura group).
View Article and Find Full Text PDFBone Res
January 2025
Center for Musculoskeletal Research, University of Rochester, School of Medicine and Dentistry, Rochester, NY, USA.
The cranial mesenchyme, originating from both neural crest and mesoderm, imparts remarkable regional specificity and complexity to postnatal calvarial tissue. While the distinct embryonic origins of the superior and dura periosteum of the cranial parietal bone have been described, the extent of their respective contributions to bone and vessel formation during adult bone defect repair remains superficially explored. Utilizing transgenic mouse models in conjunction with high-resolution multiphoton laser scanning microscopy (MPLSM), we have separately evaluated bone and vessel formation in the superior and dura periosteum before and after injury, as well as following intermittent treatment of recombinant peptide of human parathyroid hormone (rhPTH), Teriparatide.
View Article and Find Full Text PDFCureus
November 2024
Neurosurgery, University of Illinois College of Medicine Peoria, Peoria, USA.
Petroclival approaches remain challenging given abundant cranial nerves and vessels. Common trajectories include transsphenoidal, transoral, middle fossa-extradural, and posterior through the cerebellar peduncle. We report a unique intra-axial, intradural approach to the petroclival and cavernous sinus.
View Article and Find Full Text PDFJ Plast Reconstr Aesthet Surg
November 2024
Unit of Plastic and Reconstructive Surgery, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari Aldo Moro, Bari, Italy.
Background: Orbital exenteration is a severe and disabling surgical procedure that involves the removal of all orbital contents. Effective reconstruction is crucial to managing the resulting defects. This study aims to propose a reconstructive algorithm utilizing free flaps derived from the lateral circumflex femoral artery (LCFA) system for orbital exenteration defects, based on our clinical experience.
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