CTICasesLocalized Pulmonary Fibrosis Secondary to a Thoracic Osteophyte
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Imaging findings
Chest CT demonstrates a prominent, sharp paraspinal osteophyte of the thoracic spine with highly localized, focal subpleural fibrosis and architectural distortion in the adjacent lung parenchyma immediately overlying the osteophyte.
Key takeaways
Sharp thoracic spine osteophytes can cause localized mechanical irritation and repetitive microtrauma to the adjacent lung parenchyma with respiratory motion. Over time, this chronic mechanical friction can lead to focal paraspinal pulmonary fibrosis, which is a benign, localized process that should not be mistaken for progressive systemic fibrosing interstitial lung disease like UIP or asbestosis.
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