title: Spontaneous regression of non-small cell lung cancer in a patient with idiopathic pulmonary fibrosis: a case report.
abstract: Treatment of lung cancer in patients with idiopathic pulmonary fibrosis (IPF) is difficult because the mortality rate after surgery or chemotherapy is high for these patients. Spontaneous regression of cancer is rare, especially in lung cancer. A 62-year-old man, previously diagnosed with IPF, presented with stage IIIC (T2N3M0) non-small cell lung cancer. About 4 months later, spontaneous regression of the primary tumor was observed without treatment. To the best of our knowledge, this is the first report of spontaneous regression of lung cancer in a patient with IPF.
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Eu Dong
authors.initials: ED
authors.lastname: Hwang
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Young Jae
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ah Young
authors.initials: AY
authors.lastname: Leem
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ah-Young
authors.initials: AY
authors.lastname: Ji
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Younjeong
authors.initials: Y
authors.lastname: Choi
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ji Ye
authors.initials: JY
authors.lastname: Jung
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Se Kyu
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Institute of Chest Disease, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Joon
authors.initials: J
authors.lastname: Chang
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ji Hye
authors.initials: JH
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Seon Cheol
authors.initials: SC
authors.lastname: Park
keywords: Fibrosis; Lung Neoplasms; Neoplasm Regression, Spontaneous