02 September 2025
: Case report 
Ex-Utero Intrapartum Treatment for a Fetal Cervical Teratoma with Mediastinal Extension: A Case Report
Congenital defects / diseases
Madison Crew
BDEF 1, Caitlin R. Eason BDEF 2, Courtney Breckenfelder BE 2, James Jaggers AC 3, Sarah A. Gitomer ABCDE 4, Regina M. Reynolds ADE 5, Michael V. Zaretsky ABDE 6, S. Christopher Derderian ABCDE 2*
DOI: 10.12659/AJCR.949318
Am J Case Rep 2025; 26:e949318
Figure 1 Fetal ultrasoundFetal ultrasound performed at 35 weeks’ gestation demonstrating a cervical mass with extension into the right thoracic cavity. There was no evidence of compression of the great vessels or fluid accumulation within the fetus, including pleural effusion or head/scalp edema, indicating the fetus had not developed nonimmune hydrops. (A) Sagittal view demonstrating cervical (yellow arrow) and thoracic (blue arrow) extensions of the tumor. (B) Axial view of the cervical component (yellow arrow). (C) Axial view of the thoracic component (blue arrow).