CTICasesPseudo-Nodule from Osteophyte with Reactive Scarring
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Imaging findings
CT scan revealed a pulmonary nodule in the right upper lobe adjacent to a bony excrescence, appearing as an osteophyte projecting into the lung. This nodule was identical in appearance to a prior study from the previous year. Surgical resection confirmed reactive scarring in the lung adjacent to the resected osteophyte, not a true pulmonary nodule or enchondroma.
Key takeaways
Pulmonary pseudo-nodules can arise from extra-pulmonary structures like osteophytes, causing reactive scarring in the adjacent lung. Stability over time on imaging is a strong indicator of benignity. Careful evaluation of the surrounding structures and comparison with prior imaging are crucial to avoid unnecessary interventions for benign findings.
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