ABSTRACT
Prognosis of lung cancer is markedly improved when cancers are resected in early stages
(particularly in stage I). Previous investigations failed to show benefit with use
of chest radiographs or sputum cytologies to screen for lung cancer among high-risk
populations. More recently, computed tomography (CT) has been used as a screening
technique and appears to detect lung cancer at earlier stages (e.g., stage I) compared
with usual clinical practice. However, whether screening CT reduces death from lung
cancer has not been clarified. This review examines the problem presented by lung
cancer, the issues presented by screening, and the results of past and recent studies
of lung cancer screening.
KEYWORDS
Computed tomography - lung cancer screening - stage I lung cancer
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James R JettM.D.
Mayo Clinic, 200 First St. SW
Rochester MN 55905
Email: jett.james@mayo.edu