CTICasesReactivation tuberculosis with cavity expectoration
Imaging findings
CT scan of a Chinese immigrant shows apical fibrocalcific scarring and a right upper lobe nodule with a galaxy sign. Follow-up CT shows enlargement, cavitation, and expectoration of the pre-existing calcification.
Key takeaways
Reactivation tuberculosis typically presents with upper lobe predominant nodules, consolidation, and cavitation. The expectoration or dissolution of pre-existing calcification within a lesion is a sign of active reactivation.
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