Surgical Results of Metastatic Lung Tumor and Evaluation of Factors Associated with Prognosis

Clinico-pathologic studies of metastatic lung tumor were performed in 38 cases. The overall cumulative 5-year survival rate was 40.4%. No statistical differences were found between unilateral lung metastatic lesion and bilateral lung lesions, or between solitary lung metastatic lesions and multiple metastatic lesions. All cases were subdivided into two types, the infiltrative type and non-infiltrative type. The prognosis of the former was poor compared to the latter. Lymph node dissection was carried out in 18 cases and four of them showed metastasis. We consider that lymph node dissection is important to increase curability by surgery.