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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
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Updated: Jul 25, 2025

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Multimodality Imaging Appearance of Intrapericardial Paragangliomas.

Diana Palacio1,2,3,4, Maria Del Pilar Gutierrez2, Gokhan Kuyumcu1

  • 1Department of Medical Imaging, The University of Arizona College of Medicine, Tucson, Arizona, United States.

The Indian Journal of Radiology & Imaging
|June 26, 2023
PubMed
Summary

Intrapericardial paragangliomas are rare neuroendocrine tumors originating in the heart. Imaging reveals characteristic patterns, including vessel encasement and avid enhancement, aiding diagnosis.

Keywords:
chest imagingintrapericardial paragangliomasmultidetector computed tomography

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Area of Science:

  • Cardiovascular Imaging
  • Neuroendocrine Tumors
  • Pathology

Background:

  • Paragangliomas are rare neuroendocrine tumors arising from neural crest cells.
  • Intrapericardial paragangliomas, originating from intrinsic cardiac ganglia, constitute less than 1% of all paragangliomas.
  • These tumors are typically found in the posterior atria, atrioventricular groove, and near the great vessels.

Purpose of the Study:

  • To describe the multimodality imaging characteristics of intrapericardial paragangliomas.
  • To review a decade of institutional cases to identify common imaging findings.
  • To enhance diagnostic accuracy for these rare cardiac tumors.

Main Methods:

  • Retrospective review of a 10-year institutional database.
  • Identification of patients with documented intrapericardial paragangliomas.
  • Analysis of multimodality imaging features of the identified tumors.

Main Results:

  • Nine cases of intrapericardial paragangliomas were identified over 10 years.
  • Common imaging findings include tumor embedment and wrapping around great vessels and the atrioventricular groove.
  • Tumors demonstrated markedly avid heterogeneous enhancement, engorged neovascularization, and central low attenuation areas in larger lesions.

Conclusions:

  • Intrapericardial paragangliomas have distinct imaging features on multimodality scans.
  • Characteristic findings include vascular encasement, intense enhancement, and signs of degeneration.
  • Recognition of these imaging patterns is crucial for accurate diagnosis and management.