転移性肺腫瘍手術例の検討

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  • ANALYSIS OF PROGNOSTIC FACTORS FOR CASES AFTER RESECTION OF METASTATIC LUNG TUMOR

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We analyzed cases after resection of metastatic lung tumors at our hospital during the last ten years. A total of 179 subjects underwent lung resection between January 1995 and December 2004. Clinical features of the cases in each primary organ and the factors which affected survival were analyzed. The disease-free interval was longer in cases of thyroid cancer, malignant melanoma and renal cancer. Lung tumors were found in one lung of 140 cases and in both lungs of 39 cases. In cases of germ cell tumor, thyroid cancer and bone-soft tissue tumor, there were many examples of both lung metastases. As for lung excision frequency, lung resection was done two or more times in tumors with a bone and soft tissue origin. The overall 5-year survival rate since lung resection was 47%. The size of lesions, number of resected tumors, distant metastases to other organs, non-complete excision and postoperative chemotherapy were considered as factors impacting survival in all cases of metastatic lung tumors.

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