title: Spontaneous regression in advanced squamous cell lung carcinoma.
abstract: Spontaneous regression of malignant tumors is rare especially of lung tumor and biological mechanism of such remission has not been addressed. We report the case of a 79-year-old Korean patient with non-small cell lung cancer, squamous cell cancer with a right hilar tumor and multiple lymph nodes, lung to lung metastasis that spontaneously regressed without any therapies. He has sustained partial remission state for one year and eight months after the first histological diagnosis.
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Yeon Hee
authors.initials: YH
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Bo Mi
authors.initials: BM
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Se Yeon
authors.initials: SY
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Jae Woo
authors.initials: JW
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Sun Young
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Ju Ock
authors.initials: JO
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Sung Soo
authors.initials: SS
authors.lastname: Jung
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Hee Sun
authors.initials: HS
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Moon
authors.affiliation: Department of Internal Medicine, School of Medicine, Chungnam National University, Daejeon, South Korea.
authors.forename: Jeong Eun
authors.initials: JE
authors.lastname: Lee
keywords: Squamous cell lung cancer; advanced stage; spontaneous regression