Case Report: Neonatal right atrial mass of uncertain etiology

BackgroundNeonatal intracardiac masses are rare and pose significant diagnostic and therapeutic challenges, particularly in differentiating thrombi from tumors.Case summaryWe present the case of a preterm neonate with a right atrial mass of uncertain etiology. Multimodal imaging, including echocardi...

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Main Authors: Libor Svoboda, Sabine Mank, Sabine Meier, Marcel Vollroth, Alexandra Kiess, Christian Schürer
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Pediatrics
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Online Access:https://www.frontiersin.org/articles/10.3389/fped.2025.1621500/full
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author Libor Svoboda
Sabine Mank
Sabine Meier
Marcel Vollroth
Alexandra Kiess
Christian Schürer
author_facet Libor Svoboda
Sabine Mank
Sabine Meier
Marcel Vollroth
Alexandra Kiess
Christian Schürer
author_sort Libor Svoboda
collection DOAJ
description BackgroundNeonatal intracardiac masses are rare and pose significant diagnostic and therapeutic challenges, particularly in differentiating thrombi from tumors.Case summaryWe present the case of a preterm neonate with a right atrial mass of uncertain etiology. Multimodal imaging, including echocardiography and cardiac MRI, suggested the presence of a thrombus—consistent with thrombi being the most common type of intracavitary cardiac mass. As a result, primary anticoagulation therapy was initiated. However, after 16 days without significant change in the mass and given the high risk of embolization and the possibility of a benign tumor, surgical excision was performed. Histopathological analysis of the excised tissue could not definitively distinguish between an organized thrombus and a regressed benign neoplasm, although no malignant cells were identified.ConclusionsThis case highlights the diagnostic uncertainty surrounding neonatal intracardiac masses and the limitations of imaging and pathology in achieving definitive diagnosis. A multidisciplinary approach and long-term follow-up are essential, particularly when the true nature of the mass remains unclear.
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series Frontiers in Pediatrics
spelling doaj-art-b7feeeb3d9b14b76b080a68aa198de0c2025-08-20T02:37:35ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602025-07-011310.3389/fped.2025.16215001621500Case Report: Neonatal right atrial mass of uncertain etiologyLibor Svoboda0Sabine Mank1Sabine Meier2Marcel Vollroth3Alexandra Kiess4Christian Schürer5Department of Pediatric and Adolescent Medicine, University Hospital Jena, Jena, GermanySection of Pediatric Radiology, Department of Radiology, University Hospital Jena, Jena, GermanyDepartment for Pediatric and Congenital Cardiac Surgery, Leipzig Heart Center, Leipzig, GermanyDepartment for Pediatric and Congenital Cardiac Surgery, Leipzig Heart Center, Leipzig, GermanyDepartment of Pediatric and Adolescent Medicine, University Hospital Jena, Jena, GermanyDepartment of Pediatric and Adolescent Medicine, University Hospital Jena, Jena, GermanyBackgroundNeonatal intracardiac masses are rare and pose significant diagnostic and therapeutic challenges, particularly in differentiating thrombi from tumors.Case summaryWe present the case of a preterm neonate with a right atrial mass of uncertain etiology. Multimodal imaging, including echocardiography and cardiac MRI, suggested the presence of a thrombus—consistent with thrombi being the most common type of intracavitary cardiac mass. As a result, primary anticoagulation therapy was initiated. However, after 16 days without significant change in the mass and given the high risk of embolization and the possibility of a benign tumor, surgical excision was performed. Histopathological analysis of the excised tissue could not definitively distinguish between an organized thrombus and a regressed benign neoplasm, although no malignant cells were identified.ConclusionsThis case highlights the diagnostic uncertainty surrounding neonatal intracardiac masses and the limitations of imaging and pathology in achieving definitive diagnosis. A multidisciplinary approach and long-term follow-up are essential, particularly when the true nature of the mass remains unclear.https://www.frontiersin.org/articles/10.3389/fped.2025.1621500/fullneonatal cardiac massintracardiac thrombuscardiac tumorechocardiography in neonatescardiac magnetic resonance imaging (MRI)pediatric cardiac surgery
spellingShingle Libor Svoboda
Sabine Mank
Sabine Meier
Marcel Vollroth
Alexandra Kiess
Christian Schürer
Case Report: Neonatal right atrial mass of uncertain etiology
Frontiers in Pediatrics
neonatal cardiac mass
intracardiac thrombus
cardiac tumor
echocardiography in neonates
cardiac magnetic resonance imaging (MRI)
pediatric cardiac surgery
title Case Report: Neonatal right atrial mass of uncertain etiology
title_full Case Report: Neonatal right atrial mass of uncertain etiology
title_fullStr Case Report: Neonatal right atrial mass of uncertain etiology
title_full_unstemmed Case Report: Neonatal right atrial mass of uncertain etiology
title_short Case Report: Neonatal right atrial mass of uncertain etiology
title_sort case report neonatal right atrial mass of uncertain etiology
topic neonatal cardiac mass
intracardiac thrombus
cardiac tumor
echocardiography in neonates
cardiac magnetic resonance imaging (MRI)
pediatric cardiac surgery
url https://www.frontiersin.org/articles/10.3389/fped.2025.1621500/full
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