Tree-in-bud sign - normal CT virtual bronchoscopy

Case contributed by Dalia Ibrahim


Cough & dyspnea

Patient Data

Age: 20-year-old
Gender: Female

Normal caliber of the trachea and bronchi with no evidence of stenosis.

Multiple centrilobular nodules and branching linear opacities of similar caliber originating from a single stalk (the tree-in-bud pattern) in the left lower lobe. 

Multiple enlarged mediastinal (prevascular, subcarinal) and left hilar lymph nodes.

Case Discussion

Normal CT virtual bronchoscopy.

The patient's symptoms are secondary to the left lower lobar "tree-in-budd densities"

Causes of tree-in-bud sign:

Tree-in-bud in  this case was secondary endobronchial spread of tuberculosis.

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