Journals / Eurasian Journal of Medical Investigation / 2021 / Cilt: 5 - Sayı: 1
Mass Localization Relationship with Nodal Metastases in Right Lung Located Non-Small Cell Lung Cancer
- Pages
- 122–127
- DOI
- —
Abstract
Objectives: Surgical treatment of non-small cell lung cancer (NSCLC) is the most effective treatment for operable cases.Correct staging is extremely important in both prognosis and treatment selection. Lymph node invasion at the time ofdiagnosis is seen in 28-38% of NSCLC cases. The aim of our study is whether there is a relationship between the localization of the mass and the mediastinal lymph node region in the right lung non-small cell lung cancer.Methods: 235 patients with a mass in the right lung were included in the study. One patient who could not reach hisdata and 23 patients who had only mediastinoscopy were excluded from the study.Results: The location of the positive lymph node and the location of the mass were evaluated. Upper paratracheallymph node were observed in upper lobe tumors, subcarinal area metastases were observed in lower lobe and santaltumors. In the analysis, upper paratracheal (2N), lower paratracheal (4N) and interlobar (11N) lymph nodes for upperlobe tumors; subcarinal (7N) lymph node for lower lobe tumors; interlobar (11N) lymph node for central lesions werefound to be statistically significant in terms of lobe-specific metastatic lymph involvement.In the study, preoperativeevaluation of metastatic mediastinal lymph nodes with PET-CT was found to be statistically significant for mediastinallymph nodes except for station 8. High sensitivity (76.7%-96.6%) and low specificity values (18%-75%) were determined in the evaluation of metastatic lymph nodes.Conclusion: Because of PET-CT alone is not sufficient in medistinal staging, invasive evaluation is very important forcorrect staging. In the results of our study, upper paratracheal lymph node were observed in upper lobe tumors, subcarinal area metastases were observed in lower lobe and santal tumors. In the light of this information, lobe-specificlymph node dissection will not performed in right lung masses. But in complete mediastinal lymph node dissection,lobe-specific lymph nodes for metastasis should especially be considered.