title: Lung carcinoma in patients age younger than 30 years.
abstract: BACKGROUND
  To the authors' knowledge, no study regarding lung carcinoma patients age <30 years has been published. Therefore, this study was undertaken to define the characteristics of lung carcinoma patients age <30 years.
  
  
  METHODS
  Information regarding 26 patients with primary lung carcinoma who were age <30 years was obtained from 10 medical institutions and reviewed retrospectively. For comparison, 304 patients age > or = 30 years who were admitted to the First Department of Internal Medicine at Toyama Medical and Pharmaceutical University between 1980-1996 were studied.
  
  
  RESULTS
  Among the characteristics observed in the group of lung carcinoma patients age <30 years was a high incidence of female gender, no history of smoking, so-called "low grade malignancy," American Joint Committee on Cancer Stage I disease, and previous surgical resection. In addition, a low incidence of squamous cell carcinoma was noted, and a more favorable prognosis was observed.
  
  
  CONCLUSIONS
  The current study noted clinical features that could be defined clearly in lung carcinoma patients age <30 years.
authors.affiliation: 1st Department of Internal Medicine, Toyama Medical and Pharmaceutical University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Mizushima
authors.forename: A
authors.initials: A
authors.lastname: Yokoyama
authors.forename: M
authors.initials: M
authors.lastname: Ito
authors.forename: H
authors.initials: H
authors.lastname: Manabe
authors.forename: T
authors.initials: T
authors.lastname: Hirai
authors.forename: H
authors.initials: H
authors.lastname: Minami
authors.forename: Y
authors.initials: Y
authors.lastname: Anzai
authors.forename: H
authors.initials: H
authors.lastname: Sato
authors.forename: Y
authors.initials: Y
authors.lastname: Kusajima
authors.forename: R
authors.initials: R
authors.lastname: Yamashita
authors.forename: K
authors.initials: K
authors.lastname: Kobayashi
authors.forename: S
authors.initials: S
authors.lastname: Sugiyama
authors.forename: M
authors.initials: M
authors.lastname: Kobayashi
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002276:Carcinoid Tumor / Q000453:epidemiology / Q000473:pathology; D002289:Carcinoma, Non-Small-Cell Lung / Q000453:epidemiology / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000473:pathology; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D015993:Life Tables; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D012189:Retrospective Studies; D012737:Sex Factors; D016019:Survival Analysis; D015996:Survival Rate