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Emphysema or Bronchiectasis with Pulmonary Nodules: Impact on The Risk of Malignancy
Ayşegül Gencer1, Ersan Atahan1, Bilun Gemicioğlu1
1Department of Pulmonary Diseases, İstanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, İstanbul, Türkiye.
Thoracic Research and Practice
|March 2, 2026
Summary
This study found that emphysema and bronchiectasis do not increase the risk of malignancy in pulmonary nodules. These findings suggest that these lung conditions are not significant risk factors for lung cancer detection.
Area of Science:
- Pulmonology
- Oncology
- Radiology
Background:
- Computed tomography (CT) increases pulmonary nodule detection, prompting research into lung cancer risk factors.
- Early-stage lung cancer detection is a key focus due to rising CT utilization.
Purpose of the Study:
- To determine if emphysema or bronchiectasis influence the likelihood of malignancy in pulmonary nodules.
- Investigate the association between these lung conditions and cancer incidence in nodules.
Main Methods:
- 212 patients with pulmonary nodules on CT were analyzed.
- Patients were categorized into three groups: emphysema, bronchiectasis, and control.
- Demographic factors and nodule characteristics were assessed for malignancy correlation.
Main Results:
- No statistically significant difference in malignancy incidence was observed between the emphysema or bronchiectasis groups and the control group (P > 0.05).
- The presence of emphysema or bronchiectasis did not correlate with a higher rate of malignant pulmonary nodules.
Conclusions:
- Emphysema was not identified as a risk factor for lung cancer in this cohort, contrary to some literature.
- Bronchiectasis also did not appear to be a risk factor, though further research is needed due to limited data.
- Current findings challenge existing beliefs regarding emphysema as a lung cancer risk factor.
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