# Giant Right Coronary Artery Aneurysm Presenting as Syncope

**Authors:** Marios-Vasileios Koutroulos, Georgios Chalikias, Dimitrios Tziakas

PMC · DOI: 10.7759/cureus.101684 · 2026-01-16

## TL;DR

A rare case of a giant right coronary artery aneurysm causing syncope was successfully treated with surgery.

## Contribution

Presents a novel clinical case of giant right coronary artery aneurysm managed surgically.

## Key findings

- Giant right coronary artery aneurysm can present as syncope in elderly patients.
- Surgical excision and revascularization can effectively treat large coronary artery aneurysms.
- Coronary angiography is crucial for diagnosing and guiding treatment of such aneurysms.

## Abstract

Coronary artery aneurysms (CAAs) are rare findings, most commonly detected incidentally during coronary angiography or advanced cardiac imaging. Giant aneurysms of the right coronary artery are exceptionally uncommon and may lead to severe complications, including thrombosis, embolization, myocardial infarction, or sudden cardiac death. We present the case of a 78-year-old male who was diagnosed with a giant right CAA during evaluation for syncope. The patient underwent successful surgical excision of the aneurysm with revascularization of the right coronary artery. This case highlights the diagnostic value of coronary angiography and the role of surgical management in large CAAs.

## Linked entities

- **Diseases:** myocardial infarction (MONDO:0005068), sudden cardiac death (MONDO:0007264)

## Full-text entities

- **Diseases:** CAAs (MESH:D003323), coronary artery (MESH:D003324), sudden cardiac death (MESH:D016757), CAA (MESH:C564321), myocardial infarction (MESH:D009203), aneurysm (MESH:D000783), Syncope (MESH:D013575), thrombosis (MESH:D013927), Giant aneurysms of the (MESH:D002532)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12906788/full.md

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Source: https://tomesphere.com/paper/PMC12906788