[Endoscopic diagnosis of multiple primary cancer of the upper airways]

The authors analyze the results obtained at comprehensive examination of 123 patients with multifocal synchronous and metachronous cancer of the upper respiratory tracts and the lungs. Cancer of the larynx and the lungs was registered in 107 patients, multifocal cancer of the pharynx and lungs in 16 patients. Synchronous and metachronous cancer of the larynx and the lungs was diagnosed in 48 (44.9%) and 59 (55.1%) patients, respectively. High efficacy of endoscopic diagnosis is shown for multifocal cancer of the larynx and lungs, pharynx and lungs.