CTICasesIntrapericardial Paraganglioma
Imaging findings
TAVR planning CT shows an avidly enhancing soft tissue mass in the aortopulmonary window and superior aspect of the pericardium snaking along the left pulmonary artery. Gated imaging shows the mass moving with the heart, and MIBG SPECT shows intense, hot radiotracer uptake.
Key takeaways
Intrapericardial paraganglioma is a rare neuroendocrine tumor arising from chromaffin cells. On CT, they appear as highly vascular, avidly enhancing masses within the pericardial space, often displaying intense tracer uptake on MIBG scintigraphy.
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