CTICasesGanglioneuroma of the Posterior Mediastinum
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Imaging findings
CT shows a large, relatively homogeneous posterior mediastinal mass extending over multiple vertebral bodies along the Z-axis. MRI shows the lesion is very bright on T2-weighted sequences, with soft tissue signal on T1, clearly not cystic, and demonstrates some perfusion and enhancement.
Key takeaways
Ganglioneuromas are benign autonomic neurogenic tumors, less common than schwannomas and neurofibromas. They typically present as large, homogeneous posterior mediastinal masses that are hyperintense on T2-weighted MRI and show enhancement.
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