CTICasesRight Hemi-diaphragm Eventration and Phrenic Nerve Dysfunction
Imaging findings
Large pleural effusion with finger-like protrusions of extra-pleural fat pointing toward collapsed lung. Diaphragm shows normal muscle thickness anteriorly but significant thinning and fatty infiltration (steatosis) posteriorly.
Key takeaways
The findings indicate a combination of anterior eventration and segmental phrenic nerve dysfunction, likely secondary to previous heart surgery or drain placement. The extra-pleural fat projections are likely due to passive traction from pleural adhesions.
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