
Some terminology....
Ghon focus: granuloma in the lung
Ghon complex: graulmoa and ipsilaterl adenopathy
Post Primary TB: nodular / alveolar infiltrates in the upper lung zones (apical and posterior segment of the upper lobe and superior segment of the lower lobe), potentially cavitation
Atypical Patterns:
- Lower and mid lung zone infiltrates: in isolation or in association +/- pleural effusion
- Pleural effusion: usually unilateral, almost always exudative, high percentage of lymphocyte count
- Miliary TB: 1-5mm discrete nodules scattered throughout the lung
- Tuberculmoa: solitary lesion of the chest x -ray
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