![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAHaZpfuPDkZhV7RVBcGa3lncbk2hcXiWHEvIcJMuzgMoXp6YNaTAqBvH1bGPbQdbZrHw9CVsJcCYOqISKwtG16blcaQ9hTwS1RRrOUL8jpUTeRm0Om3sXDKVbCbJRwIvznFnyZVuvbA/s280/centrilobular_nodules.jpg)
Axial CT image shows multiple micronodules in the left lung. Most are not subpleural. They are non-uniform and there are some that have V- or Y shape.
Facts: Centrilobular Nodules
- Nodules limited to centrilobular structure (central core), sparing pleural surfaces
- Most peripheral nodules are centered 5-10 mm from fissures or pleural surface
- Evenly distribulted
- Common cause: without tree-in-bud - infection, inflammation, hypersensitivity, vascular disease
- Common cause: with tree-in-bud - infection
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