World Neurosurg
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Case Reports
Intracranial Low-grade Fibromyxoid Sarcoma: Findings on Electron Microscopy and Histological Analysis.
Low-grade fibromyxoid sarcoma is a rare tumor that manifests as a deep soft tissue mass characterized by a benign histology, but with potentially aggressive clinical behavior and a high rate of recurrence; primary intracranial sarcomas are even rarer. We present a case of primary intracranial low-grade fibromyxoid sarcoma, emphasizing its clinical, radiologic, and histologic features. ⋯ This report describes electron microscopic evaluation of intracranial low-grade fibromyxoid sarcoma, which has an extremely rare occurrence.
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Bioinformatics analysis integrating microenvironmental factors and single cell analysis segregated the glioblastoma (GBM) subtype into 3 subtypes: proneural, classic, and mesenchymal. Mesenchymal GBM tends to have the worst survival but benefits from aggressive treatment protocols. Therefore, it is clinically meaningful to identify relevant biomarkers to distinguish the mesenchymal subtype. Moreover, in developing nations with limited resources, rigorous examinations are costly and inefficient for patient care. ⋯ By using available online glioma databases, our study provided an insight into the expression of POSTN as an independent predictor for patients with glioma (GBM and LGG) and could be useful for diagnostic simplification to identify high-risk groups.
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Case Reports
Progressively enlarged convexity arachnoid cysts in elderly patients: A report of two cases.
Generally, enlargement of arachnoid cysts (ACs) has been found mostly in cases occurring during early childhood. Therefore, progressively enlarged ACs found to be symptomatic in elderly patients are extremely rare, and the mechanisms have remained unexplored. ⋯ The establishment of stable communication between a cyst and the normal cerebrospinal fluid space is important to treat symptomatic ACs characterized by progressive enlargement, even in elderly patients. The 1-way entry of the cerebrospinal fluid into the cyst and the closure of the surrounding subdural space might result in AC enlargement internally.
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Spinal hematomas are rarely associated with dengue syndrome and usually occur at the time of active dengue fever. Late presentation after recovery from dengue fever, intradural hematoma, presentation as a multiloculated cystic lesion with longitudinal extensive myelitis, and recurrence after surgery are rarely or not described. Due to the peculiar association of all these findings, we report this case to provide insight into the existence of such a rare presentation. ⋯ Spinal hematoma should be kept in mind in patients who present with neurologic complications after dengue fever. It can have an atypical radiologic presentation and may present with recurrent hemorrhage after surgery. Attention should also be given to delayed presentation of neurologic complications, which may develop even after weeks of recovery from dengue fever.
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Ventriculostomy-related infection (VRI) is associated with potential serious morbidity, extended hospitalization duration, increased health care costs, and mortality. We assessed the effectiveness of a pragmatic risk-stratification pathway for external ventricular drain (EVD) management, allowing for surgical decision making, in reducing the rate of VRIs. ⋯ The introduction of a pragmatic evidence-based risk-stratification pathway, in which different options for EVD management are incorporated, results in low EVD infection rates across a multisite institutional practice. Our results are comparable to published protocols involving the implementation of standard care bundles and/or antibacterial EVDs alone, in reducing VRIs.