Gallium<sup>67</sup>-Scan in Intrathoracic Staging of Primary Lung Cancer

Chung, Yeon Tae; Lee, Myung Chul; Han, Yong Chol

doi:1985.32.3.191

Tuberc Respir Dis > Volume 32(3); 1985 > Article

Original Article

Tuberculosis and Respiratory Diseases 1985;32(3):191-197.
DOI: https://doi.org/10.4046/trd.1985.32.3.191 Published online September 1, 1985.

Gallium⁶⁷-Scan in Intrathoracic Staging of Primary Lung Cancer

Yeon Tae Chung, Myung Chul Lee, Yong Chol Han

Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea

원발성 폐암의 Intrathoracic Staging에서 Ga67-Scan의 의의

정연태, 이명철, 한용철

Abstract

Evaluation of mediastinal metastasis in patients with primary bronchogenic carcinoma is important in determening therapeutic plan. Gallium⁶⁷ -scan was prospectively compared as noninvasive means of evaluating mediastinal metastasis in 20 patients in whom surgical and histologic evaluations of mediastinum were performed. Except one case of which histologic diagnosis was bronchioloalveolar cell carcinoma, all primary tumors showed uptake of Gallium⁶⁷(uptake rate of primary tumor; 95%). In 19 patients who showed uptake of primary tumor 5 patinets had false negative scan in evaluating mediastinal invasion but false positive scan was absent. These results indicate a sensitivity of 58%, a specificity of 100%, an accuracy of 58% for negative scan and an accuracy of 100% for positive scan. These data indicate that Gallium⁶⁷ -scan is useful noninvasive method for determining operability in primary bronchogenic carcinoma.