[Single-stage operations for synchronous multiple primary and metastatic cancer of the lung and other organs].

The work presents an experience with the diagnosing of synchronous tumors of double localization in 256 patients. Operations were performed on 146 of them. Single-stage operations were made in 55 cases. When performing single-stage operations, 20 patients were found to have cancer of the lung with distant metastases or cancer of other localization with a metastasis in the lung. In the other 35 patients the diagnosis of true polyneoplasia was made followed by radical operations. Advantages of single-stage operations are shown, performing the first stage of the operation on the lung being substantiated. The five year survival after surgical treatment of multiple primary cancer was 15%.