title: [So-called stage 'O' lung cancer].
mesh_terms: D000368:Aged; D001995:Bronchography; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged