Spectrum: Local Antimicrobial Stewardship, for UCLA Health

Radiographic Findings

Primary TB

Often unrecognized

Can resemble CAP and involve any lobes

Hilar adenopathy, pleural effusions are common

Cavitation is uncommon

Findings often resolve after 1-2 months

Reactivation TB

Infiltrates with or without cavitation in the upper lobes or the superior segments of the lower lobes

Hilar adenopathy is variable

CT scan may have “tree-in-bud” appearance.