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[Combination of primary lung cancer with extrapulmonary carcinomas].

An analysis is given of 50 observations of lung cancer associated with cancer of other organs. Lung cancer was preceded by cancer of another organ in 33 patients (66%), cancer of another organ developed after lung cancer had been cured--in 6 (12%), and synchronous involvement was noted in II (22%). An average interval between radical surgery for lung cancer and subsequent tumor growth in another organ was 6.2 years. Among patients with synchronous carcinomas the association with laryngeal cancer (4) and cancer of the stomach (4) was most frequently noted. The principles of treatment in patients with synchronous carcinomas are described.