Outpatient with a history of cough for three months.
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CT shows thick-walled cavities with extensive endobronchial spread. Is seen tree-in-bud pattern and centrilobular nodules peripherally.
The lungs are the most common site of primary infection by tuberculosis and are a major source of spread of the disease and of individual morbidity and mortality.
This case assumed to be a post primary tuberculosis.
The features of primary and post primary tuberculosis may overlap; however, the distinguishing features of post primary tuberculosis include a predilection for the upper lobes, the absence of lymphadenopathy, and cavitation1.
Cavitation, the hallmark of post primary tuberculosis, affects about 50% of patients. The cavities typically have thick, irregular walls, which become smooth and thin with successful treatment. Cavities are usually multiple and occur within areas of consolidation1.