CTICasesSarcoidosis with Air Trapping
Imaging findings
Confluent nodular consolidation and micro-nodules along the bronchovascular tree ("galaxy sign") with enlarged mediastinal lymph nodes. Exhalational imaging reveals profound air trapping.
Key takeaways
While air trapping is a known feature of sarcoidosis, this case represents an extreme example. It is likely caused by granulomatous involvement or airway impingement by nodal disease.
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