CTICasesBecker Muscular Dystrophy
Imaging findings
Chest and abdominal CT show marked thinning and fatty replacement of the diaphragmatic crura bilaterally, along with fatty infiltration of the pectoralis and paraspinal muscles. The chest radiograph shows persistent, very low lung volumes.
Key takeaways
Becker muscular dystrophy is a congenital muscular dystrophy that is milder than Duchenne but can still cause progressive diaphragmatic weakness and fatty atrophy, presenting with chronically low lung volumes and elevated diaphragms.
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