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  • Title: Analysis of subcarinal lymph nodes in (suspected) non-small-cell lung cancer after a negative transbronchial needle aspiration -- what's next? A preliminary report.
    Author: Annema JT, Veseliç M, Rabe KF.
    Journal: Respiration; 2004; 71(6):630-4. PubMed ID: 15627875.
    Abstract:
    BACKGROUND: Transbronchial needle aspiration (TBNA) of subcarinal lymph nodes (LN) has a variable yield. Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) has demonstrated a high accuracy in the analysis of enlarged subcarinal LN. OBJECTIVE: To assess the diagnostic accuracy of EUS-FNA in the analysis of enlarged subcarinal LN previously staged tumor negative by TBNA. METHODS AND PATIENTS: In this retrospective study, we included all patients with (suspected) lung cancer and enlarged (>1 cm on CT) subcarinal LNs staged tumor negative by TBNA, who were subsequently staged by EUS-FNA. In addition, surgical-pathological information had to be available in those cases in which EUS-FNA was tumor negative. RESULTS: Subcarinal LN metastases were assessed by EUS-FNA in 10 of 14 patients (71%). In 1 patient granulomas without necrosis were found. The remaining 3 patients staged tumor negative by both TBNA and EUS-FNA had reactive LN tissue, which was confirmed by surgical-pathological staging. Sensitivity, specificity and diagnostic accuracy of EUS in analyzing TBNA-negative LNs was 100% in all. CONCLUSIONS: In patients with (suspected) lung cancer and enlarged subcarinal LNs staged tumor negative by TBNA, additional staging by EUS-FNA confirmed subcarinal LN metastasis in 71% of the patients. These data suggest that for the analysis of the subcarinal LNs the real-time controlled technique of EUS-FNA is superior to the 'blind' technique of TBNA.
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