What Are Tree in Bud Nodules

The tree-in-bud pattern is commonly seen at thin-section computed tomography (CT

What does tree-in-bud nodules mean?

The tree-in-bud pattern typically represents impaction of centrilobular bronchioles with mucus, fluid, and/or pus with associated peribronchiolar inflammation. Rarely, however, it can reflect the occlusion of centrilobular vessels with embolic material, including tumor cells.

What causes tree-in-bud?

In infants and young children, the tree-in-bud pattern is most commonly caused by bronchial wall thickening and dilatation related to respiratory syncytial virus.

Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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