Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Here we describe the imaging findings in a 73-year-old woman who had pain in the right inguinal region, followed by progressive weakness of muscles innervated by the right femoral and obturator nerves, diagnosed as nondiabetic lumbosacral radiculoplexus neuropathy. Magnetic resonance neurography showed thickening and increase in signal intensity of the right femoral and obturator nerves.
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Ganglioneuromas are uncommon, benign, and highly differentiated tumors arising from sympathetic ganglia. Common sites for these tumors include the paraspinal region of the retroperitoneum and posterior mediastinum. We report a case of a retropharyngeal ganglioneuroma, a rare occurrence, emphasizing its key imaging characteristics.
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Posterior cerebral artery aneurysms are treatment challenge for the neurosurgeon. Parent artery occlusion, trapping and bypass have been the classic treatment options for aneurysms in this location. With the introduction of newer embolic agents such as Onyx®, endovascular intervention is now a viable therapy for these aneurysms. ⋯ This report illustrates the ability of a high-density liquid embolic agent to provide immediate reconstruction of a fusiform aneurysm in a distal location.
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Small animal neuroimaging using magnetic resonance microscopy (MRM) has evolved significantly from understanding of imaging physics to widely use today as an important tool in computational neuroanatomy, while how to get optimal inhomogeneity correction for inhomogeneous mouse brain MRM has been given less attention. ⋯ The present study demonstrates the benefit of reducing the spline distance values to 25 and tighter mask. The finding can help researches to enhance precision in studies where mouse MRM need further registration or segmentation.