Results of surgical treatment of pulmonary metastatic tumors and analysis of prognostic factors

: We evaluated surgical outcome and prognostic factors in 35 patients who underwent surgery for pulmonary metastatic tumors. Overall 5-year survival rate was 55.3%. Size of lesions and disease free interval were considered as affecting factors for survival, but not statistically significant. Because number of resected tumors, surgical procedure, laterality (unilateral or bilateral) did not significantly affect survival, we considered that partial resection was appropriate for pulmonary metastases if tumors were complete resected. Tumor size and preoperative serum carcinoembryonic antigen (CEA) levels were significant factors influencing survival for patients of colorectal carcinoma, Ki-67 positive cell ratio for patients of colorectal and breast carcinoma.