World Neurosurg
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Lower cranial nerve sheath tumors are relatively rare. Cases of schwannoma collision tumors have rarely been reported, with most of the reported cases describing schwannoma and meningioma collision tumors. ⋯ IgG4-RDs have a distinctive histopathologic pattern; however, their pathophysiology remains unclear. Special attention must be paid to the diagnosis of such diseases because they mimic other diseases and can be missed.
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Intracranial arterial atherosclerosis represents a common cause of stroke. Despite aggressive and optimal medical management, many patients will unfortunately suffer additional cerebrovascular events. The role of endovascular intervention for intracranial atherosclerotic disease continues to be uncertain, particularly in regard to extensive, symptomatic stenosis. ⋯ This case illustrates that a long coronary stent might be successfully used to manage extensive intracranial lesions. We also review the efficacy of using 1 very long stent versus multiple overlapping stents, with reference to the coronary angiography literature.
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This study aimed to assess the clinical and radiologic outcomes after neurosurgical treatment of large and giant aneurysms of the middle cerebral artery (MCA). In addition, we aimed to identify risk factors for unfavorable outcomes. ⋯ Neurosurgical management should be considered a priority for large and giant MCA aneurysms because of the high rupture rate and clinical symptoms. However, treatment outcomes remain unsatisfactory. Therefore, tailored management with consideration of risk factors for unfavorable outcomes should be implemented.
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To characterize cranioplasty complications and costs at a population level using a longitudinal national claims database. ⋯ A high complication rate is associated with cranioplasty in the United States. Older age, large cranioplasties, and delayed cranioplasties increased complication risk overall. Among patients with emergent indications, complications were associated with delayed time to cranioplasty and autograft usage.
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Rapid growth in cerebral cavernous malformation is rare. A review of the literature revealed 4 patients with known cerebral cavernous malformations who later developed a high-grade glioma at the same site. All 4 patients were females, ranging in age from 25 to 71 years, with imaging confirming rapid growth in the lesion. ⋯ We conclude that, although rare, rapid expansion of an existing cavernoma should be considered suspicious for the development of other malignant tumors, and propose adding chronic inflammation in the surrounding brain caused by microbleeds and hemosiderin deposition from the cavernoma to the list of possible causes.