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TB Progression Score 4.
(a) TBI = 2. CT image demonstrated ground-glass reticular opacities with sub-pleural and basal predominance with mild traction bronchiectasis associated with architectural distortion.
(b) TBI = 2. Follow-up CT image demonstrated probable increase in traction bronchiectasis and architectural distortion.
TBI, traction bronchiectasis/bronchiolectasis index
