title: [The efficacy of X-ray signs for differential diagnosis of small lung cancer and tuberculoma. Committee for Lung Cancer Mass Screening, JATA].
abstract: In order to evaluate the efficacy of X-ray signs for the differential diagnosis of small lung cancer from tuberculoma, a cooperative study was carried out. X-ray films of 64 cases (lung cancer 35, tuberculoma 29) were read by 11 experienced chest physicians independently. The positivity of various X-ray signs were assessed respectively and obtained data were analysed with ROC analysis method. "Ill defined contour", "unevenness of density", "paleness" were proved to be relatively useful as a diagnostic tool, but "notch", "pleural indentation" were not useful in differentiating lung cancer from tuberculoma. It was also noted that great interindividual variations existed on the judgements of X-ray signs among chest specialists, and the conquest of which may be a crucial key for the universal validity of these signs.
authors.affiliation: Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose.
authors.forename: H
authors.initials: H
authors.lastname: Tokuda
authors.forename: M
authors.initials: M
authors.lastname: Aoki
authors.forename: K
authors.initials: K
authors.lastname: Isoe
authors.forename: T
authors.initials: T
authors.lastname: Iwasaki
authors.forename: A
authors.initials: A
authors.lastname: Koyama
authors.forename: T
authors.initials: T
authors.lastname: Tateno
authors.forename: T
authors.initials: T
authors.lastname: Nakajima
authors.forename: T
authors.initials: T
authors.lastname: Mori
authors.forename: S
authors.initials: S
authors.lastname: Morioka
authors.forename: Y
authors.initials: Y
authors.lastname: Moritani
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008400:Mass Chest X-Ray; D015588:Observer Variation; D011237:Predictive Value of Tests; D012372:ROC Curve; D014375:Tuberculoma / Q000000981:diagnostic imaging*; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*