Noninvasive Diagnosis of Mediastinal Metastasis of Lung Cancer

Woo, Jun Hee; Han, Yong Choi

doi:1983.30.1.32

Tuberc Respir Dis > Volume 30(1); 1983 > Article

Original Article

Tuberculosis and Respiratory Diseases 1983;30(1):32-38.
DOI: https://doi.org/10.4046/trd.1983.30.1.32 Published online March 1, 1983.

Noninvasive Diagnosis of Mediastinal Metastasis of Lung Cancer

Jun Hee Woo, Yong Choi Han

Department of Internal Medicine, Postgraduate School of Medicine, Seoul National University, Seoul, Korea

폐암 종격동전이의 비관혈적 진단

우준희, 한용철

Abstract

Before operation (mediastinoscopy or thoracotomy or both) 24 cases of non-small cell lung cancer were prospectively evaluated for mediastinal metastasis by comparing the relative ventilation of the involved lung as determined by Lateral Position Test and Perfusion Lung Scan. The results were compared with the operative finding (mediastinal lymph node involvement or not) and following results were obtained. 1) In Twelve cases without mediastinal lymph node involvement, the difference of the relative ventilation as determined by Lateral Position Test and Perfusion Lung Scan was 4.7±0.9% (Mean±S.E.M.). 2) In 12 cases with mediastinal lympth node involvement, the difference was 20.4± 2.5% (Mean±S.E.M.). 3) Absolute difference was always less than 10% in twelve cases without mediastinal lymph node involvement, and the absolute difference was always more than 12% in 12 cases having Mediastinal Lymph Node metastasis. 4) In summary, Lateral Position Test combined with Perfusion Lung Scan was a noninvasive, economical method for evaluating Mediastinal Lymph Node metastasis and was a useful method which would take the place of mediastinoscopy to a certain degree.