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Published on: February 12, 2017
[Surgical treatment for bronchioloalveolar carcinoma with ipsilateral intrapulmonary metastatic nodules]
Gui-bin Qiao1, Wei-sheng Zeng, Li-Jun Peng
1Department of Thoracic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangdong Provincial Lung Cancer Research Institute, Guangzhou 510010, China. Guibinqiao@126.com
Objective:
The staging and treatment of bronchioloalveolar carcinoma (BAC) with pulmonary metastasis are still controversial. This study aimed at evaluating the current staging of BAC with ipsilateral intrapulmonary metastatic nodules and the therapeutic effectiveness of surgical resection.
Methods:
The clinicopathological data of 729 completely and surgically resected patients with non-small cell lung cancer (NSCLC) from December 1999 to December 2006 were retrospectively reviewed. Prognostic factors affecting the overall survival were analyzed by the Kaplan-Meier method and compared by the log rank test.
Results:
Among 67 NSCLC patients with ipsilateral intrapulmonary metastatic nodules, 54 had multiple nodules in the lobe with primary lesion (T4, PM1) and 13 had additional nodules in the other ipsilateral lobes (M1, PM2). This series consisted of 40 males and 27 females, with a median age of 60.0 years. Of those, 28 had the lesions containing pure or some bronchioloalveolar carcinoma component, while the other 39 had a NSCLC lesions containing non-bronchioloalveolar carcinoma components. The median overall survival time of this series was 24.0 months. Prognostic study demonstrated that bronchioloalveolar carcinoma histology and mediastinal lymph node metastasis had significant adverse impact on the overall survival. The median survival time of the patients with bronchioloalveolar carcinoma was 58.0 months versus 27.0 months in patients with other subtypes of NSCLC (P < 0.01). The median survival times were 39.0 months for the patients with N0 or N1 versus 14.0 months for patients with N2, with a significant difference between the two groups (P < 0.01). There was no significant difference in the survival time between the patients with PM1 (36 months) and those with PM2 (24 months) (P > 0.05).
Conclusion:
Surgical resection is effective for NSCLC patients with ipsilateral intra-pulmonary metastasis, especially for those with bronchioloalveolar carcinoma components. Our results suggest that the current TNM classification system may be inappropriate for the NSCLC patients with ipsilateral intrapulmonary metastatic nodules, and may need a modification.
