Endobronchial and Endoscopic Ultrasound-Guided Fine-Needle Aspiration: A Must for Thoracic Surgeons

A thoracic surgeon facile in endobronchial ultrasound-guided fine-needle aspiration (EBUS-FNA) and endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) can accurately sample mediastinal lymph nodes (MLNs) for histologic assessment of mediastinal adenopathy and for thoracic malignancy staging. Although mediastinoscopy is the gold standard for histologic MLN assessment, EBUS-FNA and EUS-FNA have emerged as useful, less-invasive sampling techniques that offer access to a wider range of MLN stations than mediastinoscopy and can be used to biopsy suspicious lesions within (ie, peribronchial masses) and outside the mediastinum (ie, left adrenal gland masses, liver lesions, and enlarged celiac lymph nodes). The negative predictive value of EBUS-TBNA and EUS-FNA in patients with malignancy is somewhat lower than the negative predictive value of mediastinoscopy. Therefore, we recommend that nonmalignant EBUS or EUS cytologic findings should be confirmed with a surgical MLN biopsy (ie, mediastinoscopy or thoracoscopy) if the pretest probability of malignancy is high.