CTICasesBilateral Diaphragm Paralysis
Imaging findings
A patient with a history of brachial plexopathy showed severe atrophy of the hemidiaphragms on CT and paradoxical movement of the abdominal wall on physical exam (thoraco-abdominal paradox).
Key takeaways
Severe diffuse muscle atrophy on CT is a strong predictor of paralysis. Observation of inward abdominal wall movement during inspiration is a classic physical exam sign of bilateral diaphragm failure.
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