CTICasesCavitary Pulmonary Tuberculosis
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Imaging findings
Chest radiographs and CT show bilateral upper lobe consolidation, multiple thick-walled cavitary lesions, and diffuse centrilobular nodules in a "tree-in-bud" pattern, representing severe endobronchial spread of infection. Subsequent radiographs demonstrate dramatic resolution following standard antituberculous therapy.
Key takeaways
Cavitary pulmonary tuberculosis is a highly infectious manifestation of post-primary TB, characterized by necrotizing granulomatous infection that communicates with the airway. The presence of tree-in-bud nodules indicates active bronchogenic dissemination. Prompt isolation, sputum testing, and multidrug therapy are mandatory to control public health spread.
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