Lung Cancer and Interstitial Lung Diseases

Simple Summary Lung cancer is one of the leading causes of cancer-related mortality worldwide. There is proof that interstitial lung disease and lung cancer interact and influence patient outcomes, treatment approaches, and the course of the disease. Common risk factors for both illnesses include smoking, exposure to the environment, and genetic predispositions. When interstitial lung disease is present, lung cancer management is complicated both diagnostically and therapeutically. These challenges include trouble interpreting radiological results and a higher risk of treatment-related toxicities, such as acute exacerbation following surgery and pneumonitis following radiation therapy and immunotherapy. Furthermore, the evidence-based treatment choices for patients with ILDs and lung cancer are still restricted.Abstract Lung cancer continues to be one of the leading causes of cancer-related death worldwide. There is evidence of a complex interplay between lung cancer and interstitial lung disease (ILD), affecting disease progression, management strategies, and patient outcomes. Both conditions develop as the result of common risk factors such as smoking, environmental exposures, and genetic predispositions. The presence of ILD poses diagnostic and therapeutic challenges in lung cancer management, including difficulties in interpreting radiological findings and increased susceptibility to treatment-related toxicities, such as acute exacerbation of ILD after surgery and pneumonitis after radiation therapy and immunotherapy. Moreover, due to the lack of large, phase III randomized controlled trials, the evidence-based therapeutic options for patients with ILDs and lung cancer remain limited. Antifibrotic treatment may help prevent pulmonary toxicity due to lung cancer treatment, but its effect is still unclear. Emerging diagnostic modalities and biomarkers and optimizing personalized treatment strategies are essential to improve outcomes in this patient population.