52 cases of metastatic lung tumor, including 22 (42.3%) choriocarcinoma, 13(25%) liver cancer, 6 (7.5%) stomach cancer, 2 bone tumor, etc, were reviewed at Busan National University Hospital, during a 5 year period ending with 1974.
The age distribution of metastatic lung tumor were same in second decade to 5th dicade.
The most common appearances of rentgenograms of metastatic lung tumor were that of multinodular (42.3%), diffuse acinar (21.1%), infiltrative or pneumonic(21.1%), solitary lesion (9.6%) and diffuse micronodular (5.7%).
The metastatic lesions originated from choriocarcinoma revealed multinodular and acinar in rentgenogram, and the lesions originated from liver and stomach cancer revealed infiltrative and acinar.
In our series, the positive hilar lymph node enlargement was encountered in 12 cases, of which 4 were in liver cancer and 3 were in stomach cancer. Pleural effusion was also encountered in 5 cases, of which 3 were in liver cancer.
The treatment of this series was almost conservative except of 2 cases of pulmonary resection, and the reason of this limitted cases of surgical treatment was seemed due to the delayed ditection of metastasis to lung beyond the proper indication of surgery.
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