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