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Neonatal Mediastinal Teratoma: A Case Report Cover

Neonatal Mediastinal Teratoma: A Case Report

EABR. Experimental and Applied Biomedical Research
Volume 26 (2025): Issue 4 (December 2025)
By: ,  ,   and    
Open Access
|Feb 2026
Figures & tables

Figures & Tables

Figure 1:

(A) Preoperative chest X-ray, (B) Chest CT showing obstruction of the inferior vena cava (IVC), (C) Postoperative chest X-ray, (D) Chest CT showing displacement of the trachea and right bronchus to the right.

Table 1.

Clinical neonatal successful outcomes of fetal mediastinal teratomas.

AuthorSexImagingPrenatal ProcedureOutcome
Takayasu(6)M

  • US (23WG): Cystic formation in right anterior mediastinum

  • MRI (29 WG): Cystic/solid mass NIHF, polyhydramnion

  • Aspiration of the fetal tumor cyst fluid.

  • Amniocentesis

  • Hydrops fetalis subsided No RD after birth

  • Resection 30 days after birth

  • NED

Giancotti(8)M

  • US (29WG): Anterior mediastinal mass

  • MRI (31WG): Anterior mediastinal mass, NIHF, polyhydramnion

  • US (32WG): Rapid growing mass

No

  • Elective cesarean section (32 WG)

  • RD after birth, resection 1 day after birth

  • Left vocal cord/left diaphragm paralysis

  • 18th day after birth diaphragm plication

  • No respiratory problem

Merchant(7)ND

  • US (21WG): Anterior mediastinal mass

  • MRI (22WG): Anterior mediastinal mass with displacement of the heart, calcification, NIHF

In utero resection of the tumor

  • Preterm labor (25 WG)

  • Bronchopulmonary dysplasia

  • Well at home

M. Simoncic(3)MUS (33WG): NIHF, polyhydramnionNo

  • Urgent cesarean section (33WG)

  • RD after birth, resection 7 days after birth

  • Chronic respiratory insufficiency 8 months after procedure

Present caseF

  • US (prenatal): diaphragmatic hernia US (first day after birth): homogenous mass occupying the whole thorax

  • CT (first day after birth): anterior mass involving the whole chest and extreme displacement and compression of the heart at great vessels

No

  • Chylothorax

  • Tracheomalacia

  • Bronchomalacia

  • Left diaphragma paralysis

  • 28th day after birth diaphragm plication

  • No respiratory problem

[i] M – Male, F – Female, MRI – Magnetic Resonance Imaging, CT – Computer Tomography Imaging, ND – No data, NED – No evidence of disease, NIHF – Nonimmune hydrops fetalis, RD – respiratory distress, US – ultrasound, WG – weeks gestation.

DOI: https://doi.org/10.2478/eabr-2025-0018 | Journal eISSN: 2956-2090 (formerly 2335-075X, 2956-0454) | Journal ISSN: 2956-0454 (formerly 1820-8665)
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Language: English
Page range: 421 - 424
Submitted on: Apr 12, 2025
Accepted on: Sep 30, 2025
Published on: Feb 25, 2026
Published by: University of Kragujevac, Faculty of Medical Sciences
In partnership with: Paradigm Publishing Services
Keywords:
Neonatal teratoma,
Respiratory distress,
Cardiogenic shock,
Obstructive shock,
Mediastinal mass
UDC:
617.541-006-073-053.31
Related subjects:
Medicine,
Clinical medicine,
Clinical medicine, other

© 2026 Igor Krunic, Irina Draca Cetusic, Sladjana Vasiljevic, Ana Mandras, published by University of Kragujevac, Faculty of Medical Sciences
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 26 (2025): Issue 4 (December 2025)
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