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Bronchogenic cyst: imaging features with clinical and histopathologic correlation
H P McAdams1, W M Kirejczyk, M L Rosado-de-Christenson
1Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710, USA.
Radiology
|November 4, 2000
Summary
Imaging features of bronchogenic cysts were characterized using computed tomography (CT) and magnetic resonance (MR). CT typically shows sharply marginated mediastinal masses, while MR can clarify cystic lesions that appear solid on CT.
Area of Science:
- Radiology
- Medical Imaging
- Thoracic Surgery
Background:
- Bronchogenic cysts are congenital lung malformations.
- Accurate imaging is crucial for diagnosis and management.
Purpose of the Study:
- To characterize the imaging features of bronchogenic cysts.
- To differentiate cystic from solid-appearing lesions.
Main Methods:
- Retrospective review of CT, MR, and ultrasonographic images in 68 histopathologically proven cases.
- Analysis of cyst location, margin characteristics, and attenuation/intensity on different sequences.
Main Results:
- 58 mediastinal and 10 extramediastinal cysts identified.
- CT showed sharply marginated masses with water or soft-tissue attenuation.
- MR imaging aided in characterizing lesions that appeared solid on CT.
Conclusions:
- CT typically reveals sharply marginated mediastinal bronchogenic cysts.
- A minority of cysts appear solid on CT and may be misdiagnosed.
- Magnetic resonance imaging is valuable for confirming the cystic nature of ambiguous lesions.