Abstract
Purpose
Current criteria for identification of synchronous non-small cell lung cancers (NSCLCs) may be confusing in patients with lymphatic metastases. This study was aimed at investigating the strategy using both the new histologic classification and driver-mutational testing to define multiple primary lung cancers.
Methods
Prospectively collected data of surgical patients with synchronous NSCLCs were retrospectively analyzed. Cases were defined using the Martini–Melamed criteria, and validated by histologic subtyping based on the new classification and driver mutation of selected genes. Survival was estimated between patients with multiple primary and metastatic disease controlling by nodal (N) stage. Factors associated with prolonged survival were evaluated using the Cox proportional hazards mode.
Results
A total of 131 patients followed for at least 12 months were included in this study. Controlling by N0 stage, patients who were diagnosed with multiple primary NSCLCs showed better relapse-free survival (RFS) than those with intrapulmonary metastases categorized either by the Martini–Melamed criteria or by histologic-mutational methods (both p < 0.0001). However, at N+ stage, patients stratified by Martini–Melamed criteria showed no difference in survival (p = 0.517), while those defined by histologic-mutational methods maintained superior survival compared with the control group (p = 0.042). On multivariate analysis, only N0 and diagnosis of independent lung lesions by histologic-mutational methods were significant predictors of better RFS (p = 0.031 and 0.001, respectively)
Conclusions
The histologic-mutational strategy may be an option for identification of synchronous NSCLC when traditional criteria were not applicable, especially in cases with positive lymphatics. N0 stage and the diagnosis of independent pulmonary tumors were associated with better RFS.
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References
Gazdar AF, Minna JD. Multifocal lung cancers: clonality vs field cancerization and does it matter? J Natl Cancer Inst. 2009;101(8):541–3.
Flieder DB, Vazquez M, Carter D, et al. Pathologic findings of lung tumors diagnosed on baseline CT screening. Am J Surg Pathol. 2006;30(5):606–13.
Martini N, Melamed MR. Multiple primary lung cancers. J Thorac Cardiovasc Surg. 1975;70(4):606–12.
Tanvetyanon T, Finley DJ, Fabian T, et al. Prognostic factors for survival after complete resections of synchronous lung cancers in multiple lobes: pooled analysis based on individual patient data. Ann Oncol. 2013;24(4):889–94.
Travis WD, Brambilla E, Noguchi M, et al. International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society international multidisciplinary classification of lung adenocarcinoma. J Thorac Oncol. 2011;6(2):244–85.
Sun Y, Ren Y, Fang Z, et al. Lung adenocarcinoma from East Asian never-smokers is a disease largely defined by targetable oncogenic mutant kinases. J Clin Oncol. 2010;28(30):4616–20.
Li C, Fang R, Sun Y, et al. Spectrum of oncogenic driver mutations in lung adenocarcinomas from East Asian never smokers. PLoS One. 2011;6(11):e28204.
Girard N, Deshpande C, Lau C, et al. Comprehensive histologic assessment helps to differentiate multiple lung primary nonsmall cell carcinomas from metastases. Am J Surg Pathol. 2009;33(12):1752–64.
Chapman AD, Kerr KM. The association between atypical adenomatous hyperplasia and primary lung cancer. Br J Cancer. 2000;83(5):632–6.
Kitamura H, Okudela K. Bronchioloalveolar neoplasia. Int J Clin Exp Pathol. 2010;4(1):97–9.
Wang R, Hu H, Pan Y, et al. RET fusions define a unique molecular and clinicopathologic subtype of non-small-cell lung cancer. J Clin Oncol. 2012;30(35):4352–9.
Kozower BD, Larner JM, Detterbeck FC, et al. Special treatment issues in non-small cell lung cancer: diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Chest. 2013;143(5 Suppl):e369S–99S.
Trousse D, Barlesi F, Loundou A, et al. Synchronous multiple primary lung cancer: an increasing clinical occurrence requiring multidisciplinary management. J Thorac Cardiovasc Surg. 2007;133(5):1193–200.
Flieder DB. Commonly encountered difficulties in pathologic staging of lung cancer. Arch Pathol Lab Med. 2007;131(7):1016–26.
Nakata M, Sawada S, Yamashita M, et al. Surgical treatments for multiple primary adenocarcinoma of the lung. Ann Thorac Surg. 2004;78(4):1194–9.
Tsunezuka Y, Matsumoto I, Tamura M, et al. The results of therapy for bilateral multiple primary lung cancers: 30 years experience in a single centre. Eur J Surg Oncol. 2004;30(7):781–5.
De Leyn P, Moons J, Vansteenkiste J, et al. Survival after resection of synchronous bilateral lung cancer. Eur J Cardiothorac Surg. 2008;34(6):1215–22.
Finley DJ, Yoshizawa A, Travis W, et al. Predictors of outcomes after surgical treatment of synchronous primary lung cancers. J Thorac Oncol. 2010;5(2):197–205.
Fabian T, Bryant AS, Mouhlas AL, et al. Survival after resection of synchronous non-small cell lung cancer. J Thorac Cardiovasc Surg. 2011;142(3):547–53.
Shah AA, Barfield ME, Kelsey CR, et al. Outcomes after surgical management of synchronous bilateral primary lung cancers. Ann Thorac Surg. 2012;93(4):1055–60; discussion 1060.
Dumont P, Gasser B, Rouge C, et al. Bronchoalveolar carcinoma: histopathologic study of evolution in a series of 105 surgically treated patients. Chest. 1998;113(2):391–5.
Li ZH, Zheng J, Weiss LM, et al. c-k-ras and p53 mutations occur very early in adenocarcinoma of the lung. Am J Pathol. 1994;144(2):303–9.
Sartori G, Cavazza A, Bertolini F, et al. A subset of lung adenocarcinomas and atypical adenomatous hyperplasia-associated foci are genotypically related: an EGFR, HER2, and K-ras mutational analysis. Am J Clin Pathol. 2008;129(2):202–10.
Yatabe Y, Matsuo K, Mitsudomi T. Heterogeneous distribution of EGFR mutations is extremely rare in lung adenocarcinoma. J Clin Oncol. 2011;29(22):2972–7.
Cancer Genome Atlas Research Network. Comprehensive genomic characterization of squamous cell lung cancers. Nature. 2012;489(7417):519–25.
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Yiliang Zhang and Haichuan Hu have contributed equally to this study and both should be considered as first author.
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Zhang, Y., Hu, H., Wang, R. et al. Synchronous Non-small Cell Lung Cancers: Diagnostic Yield can be Improved by Histologic and Genetic Methods. Ann Surg Oncol 21, 4369–4374 (2014). https://doi.org/10.1245/s10434-014-3840-1
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DOI: https://doi.org/10.1245/s10434-014-3840-1