Tree-in-bud sign
Tree-in-bud sign
The Tree-in-bud sign (pronunciation: /triː ɪn bʌd saɪn/) is a term used in radiology to describe a specific appearance of the bronchioles on a CT scan of the lungs. The term is derived from the visual similarity between the appearance of certain lung abnormalities and a budding tree.
Etymology
The term "Tree-in-bud" is a descriptive term in radiology that was first used in the late 20th century. It is derived from the visual similarity between the appearance of certain lung abnormalities and a budding tree. The term is used to describe the appearance of multiple small centrilobular nodules with a linear branching pattern on a CT scan, which resembles a tree in its budding stage.
Related Terms
- Bronchioles: Small airways in the lungs that lead from the bronchi to the alveoli.
- Computed Tomography: A type of imaging test that uses x-rays and a computer to create detailed images of the inside of the body.
- Centrilobular Nodules: Small nodules located in the center of the secondary pulmonary lobule.
- Alveoli: Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
See Also
References
External links
- Medical encyclopedia article on Tree-in-bud sign
- Wikipedia's article - Tree-in-bud sign
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