Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report

Introduction: Fourth branchial cleft anomalies are a rare congenital condition with varying presentations. Pediatricians and pediatric subspecialists must be familiar with this entity. Case presentation: A 4-day old term female presented with increased work of breathing. Exam was notable for intermi...

Full description

Saved in:
Bibliographic Details
Main Authors: Marisa E. Schwab, Karthik Balakrishnan, Stephanie D. Chao
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Journal of Pediatric Surgery Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213576625000624
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850171810090319872
author Marisa E. Schwab
Karthik Balakrishnan
Stephanie D. Chao
author_facet Marisa E. Schwab
Karthik Balakrishnan
Stephanie D. Chao
author_sort Marisa E. Schwab
collection DOAJ
description Introduction: Fourth branchial cleft anomalies are a rare congenital condition with varying presentations. Pediatricians and pediatric subspecialists must be familiar with this entity. Case presentation: A 4-day old term female presented with increased work of breathing. Exam was notable for intermittent subcostal retractions. X-ray showed a mediastinal shadow. Chest CT showed a large mass extending from the neck into the mediastinum. Interventional radiology placed a pigtail into the mass via the left neck. This drained milky cloudy fluid for seven weeks. After transfer to a quaternary children's hospital, an MRI showed a persistent large thick-walled cyst tracking into the neck.Laryngoscopy, bronchoscopy and esophagoscopy initially didn't show anomalies. Methylene blue dye was injected into the drain and seen to exit from a left pyriform sinus tract. This was confirmed with on-table fluoroscopy.Two days later, she underwent injection of sclerosing agents and contrast via the drain under fluoroscopy. The sinus tract was cauterized and suture ligated using laryngoscopy. Laryngoscopy a few days later revealed no patent sinus tract. Sclerosant was again injected. Ultrasound after one month showed a slightly decreased mediastinal mass. Ultrasound three months later was significantly decreased size. At 7-month follow-up, the patient remains asymptomatic, feeding and growing well. Conclusion: Fourth branchial anomalies are rare but must be considered in a pediatric patient of any age presenting with a neck or mediastinal mass.
format Article
id doaj-art-b19d289ee66c437a8908bfaaf77206cb
institution OA Journals
issn 2213-5766
language English
publishDate 2025-06-01
publisher Elsevier
record_format Article
series Journal of Pediatric Surgery Case Reports
spelling doaj-art-b19d289ee66c437a8908bfaaf77206cb2025-08-20T02:20:12ZengElsevierJournal of Pediatric Surgery Case Reports2213-57662025-06-0111710301710.1016/j.epsc.2025.103017Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case reportMarisa E. Schwab0Karthik Balakrishnan1Stephanie D. Chao2Division of Pediatric Surgery, Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, CA, USA; Corresponding author. Division of Pediatric Surgery, Stanford University School of Medicine, 453 Quarry Road, 4th Floor Palo Alto, CA, 94304, USA.Department of Otolaryngology — Head & Neck Surgery, Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, CA, USADivision of Pediatric Surgery, Lucile Packard Children's Hospital, Stanford University School of Medicine, Palo Alto, CA, USAIntroduction: Fourth branchial cleft anomalies are a rare congenital condition with varying presentations. Pediatricians and pediatric subspecialists must be familiar with this entity. Case presentation: A 4-day old term female presented with increased work of breathing. Exam was notable for intermittent subcostal retractions. X-ray showed a mediastinal shadow. Chest CT showed a large mass extending from the neck into the mediastinum. Interventional radiology placed a pigtail into the mass via the left neck. This drained milky cloudy fluid for seven weeks. After transfer to a quaternary children's hospital, an MRI showed a persistent large thick-walled cyst tracking into the neck.Laryngoscopy, bronchoscopy and esophagoscopy initially didn't show anomalies. Methylene blue dye was injected into the drain and seen to exit from a left pyriform sinus tract. This was confirmed with on-table fluoroscopy.Two days later, she underwent injection of sclerosing agents and contrast via the drain under fluoroscopy. The sinus tract was cauterized and suture ligated using laryngoscopy. Laryngoscopy a few days later revealed no patent sinus tract. Sclerosant was again injected. Ultrasound after one month showed a slightly decreased mediastinal mass. Ultrasound three months later was significantly decreased size. At 7-month follow-up, the patient remains asymptomatic, feeding and growing well. Conclusion: Fourth branchial anomalies are rare but must be considered in a pediatric patient of any age presenting with a neck or mediastinal mass.http://www.sciencedirect.com/science/article/pii/S2213576625000624Case reportBranchial cleft anomalyPyriform sinusMediastinal mass
spellingShingle Marisa E. Schwab
Karthik Balakrishnan
Stephanie D. Chao
Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
Journal of Pediatric Surgery Case Reports
Case report
Branchial cleft anomaly
Pyriform sinus
Mediastinal mass
title Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
title_full Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
title_fullStr Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
title_full_unstemmed Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
title_short Fourth branchial cleft cyst presenting as a mediastinal mass in a neonate: a case report
title_sort fourth branchial cleft cyst presenting as a mediastinal mass in a neonate a case report
topic Case report
Branchial cleft anomaly
Pyriform sinus
Mediastinal mass
url http://www.sciencedirect.com/science/article/pii/S2213576625000624
work_keys_str_mv AT marisaeschwab fourthbranchialcleftcystpresentingasamediastinalmassinaneonateacasereport
AT karthikbalakrishnan fourthbranchialcleftcystpresentingasamediastinalmassinaneonateacasereport
AT stephaniedchao fourthbranchialcleftcystpresentingasamediastinalmassinaneonateacasereport