CTICasesAcute Pulmonary Embolism
Imaging findings
A subtle distension of the infra-hilar/interlobar pulmonary artery is observed on chest radiograph compared to a remote baseline. Subsequent CT confirms a substantial PE in the distal right intra-pericardial pulmonary artery extending into the interlobar artery.
Key takeaways
Subtle vascular changes on plain films can be easy to miss; however, when clinical suspicion for PE is high, carefully comparing current radiographs with prior images can reveal subtle distension of pulmonary vessels.
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