Objective:

To demonstrate the effectiveness of transcatheter embolization in managing a pericardial paraganglioma in a patient who declined surgical intervention, emphasizing the case-specific nature of the findings.

Key Findings:

• Significant tumor regression was observed at the one-year follow-up, indicating the effectiveness of the embolization.
• Post-procedural urinary catecholamine levels normalized, suggesting successful treatment.
• The patient reported substantial symptom resolution and maintained controlled blood pressure, underscoring the treatment's impact.

Interpretation:

This case underscores the potential of non-surgical interventions like embolization for treating inoperable pericardial tumors, while also highlighting the importance of multimodal imaging in achieving favorable management outcomes.

Limitations:

• The study is based on a single case, limiting generalizability and necessitating further research to validate findings.
• Long-term outcomes beyond one year are not assessed, which may affect the understanding of the treatment's durability.

Conclusion:

Transcatheter embolization can be an effective non-surgical management strategy for pericardial paragangliomas, providing significant symptom relief and tumor reduction.