tree in bud

Tree in bud Do Hoang Trong Definition • TIB opacities, when present, are seen in a centrilobular location They may be associated with centrilobular nodules • TIB is characterized by the presence of branching opacities, to mm in thickness and to cm in length, often associated with small nodules at the tips of the branches or along their length • TIB is usually due to dilatation and impaction of centrilobular bronchioles by pus or mucus (the branches), associated with small regions of peribronchiolar inflammation or fibrosis (the buds) Tree in bud Infection of small airway disease Not specific with regard to the type of infection Cause of tree in bud Bacterial infection Mycobacterial infection Fungal infection Viral infection Cystic fibrosis ABPA Primary ciliary dyskinesia Immunodeficiency Diffuse panbronchiolitis Follicular bronchiolitis Invasive mucinous adenocarcinoma Aspiration Pneumonia Pneumonia Primary ciliary dyskinesia • Genetic disorder • Sinutitis • Conduct hearing loss • Bronchiectasis and bronchiolitis • impaired fertility Primary ciliary dyskinesia ABPA and TIB Diffuse panbronchiolitis • Etiology is unclear, but it is likely that chronic infection play a significant role • If left untreated, DPB progresses to bronchiectasis • Daily treatment of DPB with macrolide antibiotics such as erythromycin eases symptoms and increases survival time, but the disease currently has no known cure • The eventual result of DPB can be respiratory failure and heart problems Difuse panbronchiolitis infection Tuberculosis Tuberculosis Conclusion • TIB is bronchiectasis and contatin sputum, pus… , so TIB is a sign of infection • TIB is not specific for tuberculosis if it come alone Reference • Ebook Fundamental HRCT, Brett M Elicker, W Richard Webb ... peribronchiolar inflammation or fibrosis (the buds) Tree in bud Infection of small airway disease Not specific with regard to the type of infection Cause of tree in bud Bacterial infection Mycobacterial infection... infection Fungal infection Viral infection Cystic fibrosis ABPA Primary ciliary dyskinesia Immunodeficiency Diffuse panbronchiolitis Follicular bronchiolitis Invasive mucinous adenocarcinoma Aspiration... Pneumonia Primary ciliary dyskinesia • Genetic disorder • Sinutitis • Conduct hearing loss • Bronchiectasis and bronchiolitis • impaired fertility Primary ciliary dyskinesia ABPA and TIB Diffuse