Related Experiment Video

Updated: Oct 26, 2025

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
04:56

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm

Published on: August 1, 2025

237

A Rare Case of Coronary Artery Dilatation and Giant Pseudoaneurysm

Corrado De Marco1, Jacinthe Boulet1,2, Eisa Aldhaheri1,2

  • 1Department of Medicine, Université de Montréal, Montréal, Canada.

JACC. Case Reports
|July 28, 2021
PubMed

Insights

Coronary artery fistulas can cause coronary pseudoaneurysms. This case highlights a large pseudoaneurysm mimicking a left atrial mass in a 68-year-old woman.

Area of Science:

  • Cardiology
  • Vascular Surgery
  • Medical Imaging

Background:

  • Coronary artery fistulas are abnormal connections between coronary vessels and cardiac chambers or other vessels.
  • These anomalies can lead to complications such as coronary dilatation and pseudoaneurysm formation.
  • Pseudoaneurysms, especially large ones, can present atypically, posing diagnostic challenges.

Purpose of the Study:

  • To present a unique case of a voluminous coronary pseudoaneurysm.
  • To illustrate the potential for coronary artery fistula to manifest as a left atrial mass.
  • To emphasize the importance of considering rare vascular anomalies in differential diagnoses.

Main Methods:

  • Case report presentation.
  • Review of patient's clinical presentation, imaging findings (echocardiography, CT angiography), and management.
  • Discussion of the pathophysiology and clinical implications of coronary artery fistulas and pseudoaneurysms.

Main Results:

  • A 68-year-old woman presented with a large coronary pseudoaneurysm.
  • The pseudoaneurysm, arising from a coronary artery fistula, mimicked a near-complete obstruction of the left atrial cavity.
  • Diagnostic imaging confirmed the nature and origin of the mass.

Conclusions:

  • Coronary artery fistulas can result in complex pseudoaneurysms.
  • Large coronary pseudoaneurysms may present as cardiac masses, requiring thorough investigation.
  • Accurate diagnosis is crucial for appropriate management of these rare vascular anomalies.

Keywords:
CAA, coronary artery aneurysmCAF, coronary artery fistulaRCA, right coronary arteryTTE, transthoracic echocardiogramcomputed tomographycoronary angiographycoronary vessel anomalyechocardiography

More Related Videos

Novel and Innovative Hybrid Technique for Type A Aortic Dissection06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

554
Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices07:21

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices

Published on: September 8, 2023

837

Related Concept Videos

Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
85
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
55
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
58
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
96
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
87
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
91