CTICasesLeft Phrenic Nerve Injury Post-CABG
Imaging findings
Persistent left lower lobe opacity that was misinterpreted as consolidation; imaging confirmed atelectasis. Comparison with pre-operative imaging revealed clear atrophy of the left hemidiaphragm.
Key takeaways
Evolution of atrophy over months is a definitive indicator of permanent phrenic nerve injury. Phrenic nerves can potentially recover up to 1.5 years post-injury if the nerve is not fully transected.
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