CTICasesAcute Pulmonary Embolism with Pulmonary Hemorrhage
Imaging findings
A young patient's lateral chest radiograph shows a subtle but real focal opacity in the left lower lobe that is easy to overlook on the frontal projection alone; corresponding CT shows a focal, non-enhancing confluent opacity with a disordered, patchy internal pattern typical of pulmonary hemorrhage, and a small filling defect confirms an accompanying pulmonary embolus.
Key takeaways
A focal, poorly marginated opacity with disordered internal lucency corresponding to a small pulmonary artery embolus represents pulmonary infarction/hemorrhage, and this case illustrates how such focal PE-related opacities can be easy to overlook on the frontal radiograph while being obvious on the lateral view.
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