CTICasesCOVID-19-Related Phrenic Nerve Injury and Diaphragm Atrophy
Imaging findings
CT chest and abdomen shows persistent, severe elevation of the left hemidiaphragm, associated with marked muscle thinning and fatty replacement of the left diaphragmatic crus, developing post-severe COVID-19 infection.
Key takeaways
Severe COVID-19 infection can be associated with neuropathies, including phrenic nerve injury. If the nerve injury is permanent, the lack of motor input leads to diaphragmatic paralysis and subsequent disuse atrophy and fatty degeneration of the diaphragmatic muscle.
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