Related Experiment Video
Updated: Jun 30, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Pericardial effusion causing echocardiographic mimicking of left intra-atrial thrombus
Emmanuel Messas1, Catherine Szymanski, Jean Noël Fabiani
1INSERM U633, Faculté de Médecine René Descartes, Hôpital Européen Georges Pompidou, Pôle Cardiovasculaire, 20 rue Leblanc, Paris 75015, France. emmanuel.messas@free.fr
A 71-year-old woman presented with dyspnoea and irregular tachycardia. Investigation revealed the presence of pericardial effusion and left intra-auricular mass. The patient was sent to the operation theatre and after pericardial drain, the intra-atrial mass disappeared with retroactive diagnosis of left atrial appendage invagination.
A 71-year-old woman presented with dyspnoea and irregular tachycardia. Investigation revealed the presence of pericardial effusion and left intra-auricular mass. The patient was sent to the operation theatre and after pericardial drain, the intra-atrial mass disappeared with retroactive diagnosis of left atrial appendage invagination.
Related Concept Videos
Pericarditis II: Clinical Features and Diagnostic Tests
Imaging Studies for Cardiovascular System II:Types of Echocardiography
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Mitral Stenosis II: Clinical features and Diagnostic Tests

