Endoscopic Ultrasonography, Fine-Needle Aspiration Biopsy Guided by Endoscopic Ultrasonography, and Computed Tomography in the Preoperative Staging of Non-Small-Cell Lung Cancer: A Comparison Study

Abstract

Endoscopic ultrasonography alone or with fine-needle aspiration biopsy adds useful diagnostic information in determining metastasis to posterior mediastinal or subcarinal lymph nodes in patients with non-small-cell lung-cancer. These procedures are especially helpful in the preoperative evaluation of patients with suspicious contralateral mediastinal or "bulky" subcarinal nodes.