CTICasesDiaphragmatic Weakness post Go-Kart Trauma
Imaging findings
Chest radiographs show progressive elevation of the right hemidiaphragm (both anterior and posterior crus) following a go-karting accident. CT chest shows marked thinning of the right diaphragmatic crus compared to the left, and fluoroscopy shows reduced excursion, treated with plication.
Key takeaways
Blunt chest or abdominal trauma can cause phrenic nerve injury or sub-rupture stretching of the diaphragm, presenting as progressive hemidiaphragmatic elevation and weakness. Crus thinning on CT can distinguish muscle atrophy/weakness from simple eventration.
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