title: [Detection of early cancer by lung cancer screening].
abstract: A total of 1,615,010 person-years in 64 local municipalities were screened from April 1982 through March 1990. All participants were screened annually by chest X-ray, and participants of high risk group were screened by both chest X-ray and sputum cytology. 76,522 person-years(4.7%) were screened by sputum cytology. Among 148 lung cancer patients(0.194%) detected by sputum cytology, 132 were squamous cell carcinoma, and 116(78%) were chest X-ray negative. 90 patients were proved to be Stage 0 or I after resection, and 47 were less than 10 mm in diameter. On the contrary, 166 out of 432 detected patients detected by chest X-ray only, were proved to be Stage I after resection, and 4 patients were less than 10 mm in diameter. Thus, sputum cytology for high risk group were effective to detect early lung cancer.
authors.affiliation: Department of Thoracic Surgery, Tohoku University.
authors.forename: Y
authors.initials: Y
authors.lastname: Saito
authors.forename: S
authors.initials: S
authors.lastname: Takahashi
authors.forename: K
authors.initials: K
authors.lastname: Usuda
authors.forename: M
authors.initials: M
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Sagawa
authors.forename: C
authors.initials: C
authors.lastname: Endo
authors.forename: S
authors.initials: S
authors.lastname: Fujimura
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000517:prevention & control*; D003581:Cytodiagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology / Q000517:prevention & control*; D008403:Mass Screening; D009367:Neoplasm Staging; D013902:Radiography, Thoracic; D013183:Sputum / Q000166:cytology