Right Ventricular Paraganglioma Mimicking Coronary Artery Aneurysm: A Diagnostic Conundrum.

ABSTRACT:

Background

Paragangliomas are rare neuroendocrine tumors arising from chromaffin cells, often associated with excess catecholamine production. Cardiac paragangliomas are particularly uncommon, accounting for <1% of all cardiac tumors.

Case summary

We report a case of a right ventricular mass that was initially misidentified as a pericardial cyst on imaging but was ultimately diagnosed as a benign paraganglioma deriving from hereditary paraganglioma and pheochromocytoma syndrome after further diagnostic evaluation and treatment.

Discussion

This case highlights how rare pathologies may mimic other conditions, emphasizing the complexity and importance of a thorough diagnostic work-up in identifying cardiac paragangliomas.

Take-home messages

Cardiac paragangliomas

SUBMITTER: Kim DY 

PROVIDER: S-EPMC12426667 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature