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Updated: Jul 12, 2026

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
Published on: April 12, 2024
Multidetector computed tomography detection of bronchial diverticula.
Matthew F Sanford1, Lynn S Broderick
1University of Wisconsin-Madison, Madison, WI 53792, USA.
Bronchial diverticula, often linked to chronic obstructive pulmonary disease, can be mistaken for pneumomediastinum on CT scans. Thin-section CT imaging clearly identified these air-filled structures, aiding in accurate diagnosis.
Area of Science:
- Pulmonary Medicine
- Radiology
- Medical Imaging
Background:
- Bronchial diverticula are infrequently encountered pulmonary findings.
- Association between bronchial diverticula and chronic obstructive pulmonary disease (COPD) is recognized.
- High-resolution computed tomography (CT) has improved the detection of small pulmonary structures.
Observation:
- A case is presented where small, air-filled bronchial diverticula were observed.
- These diverticula were noted to be potentially misidentified as pneumomediastinum on CT scans.
- Advanced imaging techniques were utilized for detailed visualization.
Findings:
- Retrospectively reconstructed thin-section CT clearly depicted multiple bronchial diverticula.
- The imaging findings enabled a definitive diagnosis of bronchial diverticula.
- This facilitated differentiation from other potential thoracic pathologies.
Implications:
- Accurate identification of bronchial diverticula is crucial for correct diagnosis in patients with COPD.
- Awareness of this potential imaging pitfall can prevent misdiagnosis of pneumomediastinum.
- Thin-section CT reconstruction is a valuable tool for diagnosing subtle bronchial abnormalities.
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