Abstract
Purpose
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a well-established diagnostic tool for lung cancer, sarcoidosis, and suspected metastatic extrathoracic malignancy. EBUS-TBNA carries a high diagnostic yield, but its negative predictive value (NPV) requires further clarification.
Methods
We reviewed EBUS-TBNA at our cancer center from 2008 to 2015. We identified negative diagnostic samples for adenopathy suspected to represent metastatic disease from extrathoracic malignancy.
Results
We reviewed 529 EBUS-TBNAs. Ninety patients underwent EBUS-TBNA sampling of the hilum and/or mediastinum (121 nodes, 14 masses) for suspected extrathoracic malignancy. Thirty-seven patients had negative samples (lymph node, granulomas or non-diagnostic specimens). The overall NPV was 98 %. Granulomas (11 patients, 25 nodes) seen on histology had a 100 % NPV, including those that were FDG-PET (fluorodeoxyglucose positron emission tomography) avid (n = 14 nodes).
Conclusion
Negative EBUS-TBNA in patients with extrathoracic malignancy and suspected secondary hilar or mediastinal metastases can infer a high NPV especially if granulomas are seen on histology. Larger prospective investigations are needed to confirm the high NPV of EBUS-TBNA with granulomas in extrathoracic malignancies.
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Abbreviations
- EBUS-TBNA:
-
Endobronchial ultrasound-guided transbronchial needle aspiration
- NPV:
-
Negative predictive value
- FDG-PET:
-
Fluorodeoxyglucose positron emission tomography
- CT:
-
Computed tomography
- SUV:
-
Maximum standardized uptake value
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Author's Contribution
Christina R. Bellinger: guarantor, study design, data collection and analysis, paper composition, editing paper; Deepankar Sharma: data collection, paper composition; Jimmy Ruiz: paper composition, editing; Graham Parks: cytopathology images and descriptions, editing paper; Edward F. Haponik: editing paper; Travis Dotson: data collection, editing paper.
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Approval from Institutional Review Board at Wake Forest University, ID IRB00013684.
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Bellinger, C.R., Sharma, D., Ruiz, J. et al. Negative Predictive Value of Granulomas on EBUS-TBNA in Suspected Extrathoracic Malignancy. Lung 194, 387–391 (2016). https://doi.org/10.1007/s00408-016-9878-z
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DOI: https://doi.org/10.1007/s00408-016-9878-z