Related Experiment Video
Updated: Jun 17, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
Echogenic mass in the right atrium after surgical ventricular septal defect closure: thrombus or tumour?
Nicole de Winkel1, Karen Becker, Manfred Vogt
1Department of Pediatric Cardiology and Congenital Heart Disease, German Heart Centre Munich, Technische Universität München, Munich, Germany. dewinkel@dhm.mhn.de
Abstract:
We describe a neonate who presented with an echogenic mass in the right atrium 8 weeks after closure of ventricular and atrial septal defects. On a routine post operative check up after discharge, a mass was detected in the right atrium on echocardiography. As a thrombotic formation was suggested, lysis was started, in combination with the administration of unfractioned heparin. As there was no change in echogenicity or size of the mass, it was surgically excised. Histopathological examination revealed a myofibroblastic inflammatory tumour.
Related Concept Videos
Mitral Stenosis II: Clinical features and Diagnostic Tests
Chambers of the Heart
Deoxygenated blood from the body is received in the right...
Mitral Stenosis I: Introduction
Cardiac Catheterization II: Right Heart Catheterization
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Development of the Heart
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...

