Citation, DOI and case data
Shortness of breath.
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Axial CT scan (lung and mediastinal windows) shows a collapsed trachea with a decrease in the AP diameter involving the intra-thoracic part of the trachea. Segmental left lower lobe passive collapse that is related to the pericardial fat pad was noticed.
This patient sent for CT scan as a patch of consolidation seen in the left lower zone of the frontal CXR that seem to be related to the prominent fat pad. The scan, for a moment of good luck, taken in the expiration so the finding of tracheomalacia became more obvious. Tracheomalacia is still either incidental or the cause of the dyspnea.