RT Journal Article SR Electronic T1 Lung cancer in patients with idiopathic pulmonary fibrosis: Clinical characteristics and impact on survival JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P2328 VO 42 IS Suppl 57 A1 Jong Sun Park A1 Taehoon Lee A1 Ji Young Park A1 Hong Yeul Lee A1 Hyo-Jeong Lim A1 Young-Jae Cho A1 Ho Il Yoon A1 Jae Ho Lee A1 Sanghoon Jheon A1 Chul-Gyu Yoo A1 Choon-Taek Lee A1 Sung Koo Han YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/P2328.abstract AB Background: Idiopathic pulmonary fibrosis (IPF) is reported to be associated with an increased risk of lung cancer. However, few studies have explored whether IPF affects the long-term survival of lung cancer patients. The primary goal of this study was to evaluate the impact of IPF on lung cancer survival. Additionally, the clinical characteristics of lung cancer in IPF patients were investigated.Methods: Seventy patients who had both IPF and histologically proven lung cancer were identified through a search of the Seoul National University Bundang Hospital database from 2003 to 2012. Of these, 33 surgically treated patients were matched with 66 patients who had lung cancer without IPF. Matched variables included age, sex, histologic type, and lung cancer stage.Results: Of the 70 subjects, 94% were male, and the mean age was 70 years (range, 46–90). In total, 81% of the cancers were located in the lung periphery whereas 56% were in the lower lobe. The majority of cancers (70%) were found in the fibrotic area on chest computed tomography scans. The most frequent histologic type was squamous cell carcinoma (40%). Among surgically treated patients (33 cases and 66 controls), the 5-year survival rates were 38% for lung cancer patients with IPF and 73% for lung cancer patients without IPF (p = 0.001).Conclusions: Squamous cell carcinoma was the most common type of lung cancer in patients with IPF. IPF reduced the survival of surgically treated lung cancer patients regardless of age, sex, histologic type, and/or lung cancer stage.