title: Non-infected and Infected Bronchogenic Cyst: The Correlation of Image Findings with Cyst Content.
abstract: We hereby report a case on bronchogenic cyst which is initially non-infected, then becomes infected after bronchoscopic ultrasound (US)-guided transesophageal fine-needle aspiration (FNA). The non-infected bronchogenic cyst appears to be filled with relatively echogenic materials on US, and the aspirate is a whitish jelly-like fluid. Upon contrast-enhanced MRI of the infected bronchogenic cyst, a T1-weighted image shows low signal intensity and a T2-weighted image shows high signal intensity, with no enhancements of the cyst contents, but enhancements of the thickened cystic wall. The patient then undergo video-assisted thoracic surgery 14 days after the FNA. The cystic mass is known to be completely removed, and the aspirate is yellowish and purulent. To understand the image findings that pertain to the gross appearance of the cyst contents will help to diagnose bronchogenic cysts in the future.
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Hong Gil
authors.initials: HG
authors.lastname: Jeon
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Ju Hwan
authors.initials: JH
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Hye Min
authors.initials: HM
authors.lastname: Park
authors.affiliation: Department of Radiology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Woon Jung
authors.initials: WJ
authors.lastname: Kwon
authors.affiliation: Department of Pathology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Hee Jeong
authors.initials: HJ
authors.lastname: Cha
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Young Jik
authors.initials: YJ
authors.lastname: Lee
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Chang Ryul
authors.initials: CR
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Yangjin
authors.initials: Y
authors.lastname: Jegal
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Jong-Joon
authors.initials: JJ
authors.lastname: Ahn
authors.affiliation: Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
authors.forename: Seung Won
authors.initials: SW
authors.lastname: Ra
keywords: Bronchogenic Cyst; Infection; Magnetic Resonance Imaging; Ultrasonography