[Surgical analysis for metastatic lung tumor originating from renal cell carcinoma].
In this study, we evaluated 16 surgically treated cases of metastatic lung tumors originating from renal cell carcinoma. Ten males and 6 females with ages ranging from 31 years to 74 years (average 60.8 years) were examined. Five cases had solitary metastasis, 4 had ipsilateral multiple metastasis, and 7 had bilateral metastasis. The average number of lung metastatic legion was 3.3. Disease free intervals ranged from 0 to 120 months (average 22.6 months). Tumor doubling time calculated in only 8 cases, ranged from 36 to 510 days (average 126 days). In 8 cases, tumor doubling time could not be calculated because tumor growth was too slow. Partial resection or segmental resection was performed in 14 cases, 8 with ipsilateral and 6 with bilateral lung metastasis. Lobectomy was performed in only two cases. Five year survival rate was 43% as determined by the Kaplan-Meier method. We believe that such cases possessing a slow tumor growth rate have a better survival rate.
Second Department of Surgery, Hokkaido University School of Medicine, Sapporo, Japan.
T
T
Okubo
T
T
Okayasu
N
N
Hasegawa
Y
Y
Osaka
T
T
Tanabe
D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008175:Lung Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy / Q000401:mortality; D015996:Survival Rate