861Cases Non-small Cell Lung Cancer Lymph Node Metastasis Rule And Clinical Significance

0bjective：To investigate the relationship between the size of primary tumor，extent of thecarcinoma，pathologic classification，location of tumor and1ymph node metastasis inlung cancer．Methods：Collect our hospital eight hundred and sixty—one patients with lung cancerunderwent pneumonectomy or lobectomy and lymphadeneetomy from2002.1～2011.12．The law of lymph node metastasis was an alyzed．According to2009ofInternational Association for the Study of Lung Cancer （IASLC）come up withNew lung cancer lymph node distribution and lymph node group after the surgeryother systemic mediastinal nodes.To do routine pathological specimens analysisLobectomy for and pneumonectomy specimens describe tumor size and edge(with/without bleeding/necrosis/empty form), and pulmonary lobectomy in sectionposition with bronchial relations, and disease extent (focal or transfer) and adequateresection.Intraoperative specimens of lymph node using the American Cancerfederation (American Joint Committee on Cancer, AJCC) about intraoperative stagingsystem grouping regional lymph node of lymph node group.N2nodes are oftenaccurately by surgeons in group, pneumonectomy specimens with N2often lymphnodes, and shall, according to the specific parts distinguish.Results：From861cases of small cell lung cancer was clear lymph node13890pieces of thecommunist party of our hospital，metastatic rates was11.4％. The total lymph nodemetastatic rates of T1，T2，T3and T4diseases were27.7％．48.2％．50.0％and66.7 ％．The total adenocarcinoma lymph node metastasis rate were38.0％.The total scalecancer lymph node metastasis rate were52.9%.The large cell carcinoma lymph nodemetastasis rate were27.8％. The total lymph node metastatic rates in central andperipheral lung cancer were51.5%and38.0％．One group of N2narrative transferrate is15.2%.Conclusion：Lung cancer lymph node metastasis is very active, with multiple, jumping andcross area to the transfer of the mediastinum rule. And the primary tumor size, and thedegree of invasion and pathologic types, tumor location are closely.Pneumonectomylays systemic lymph node dissection is necessary.Especially in the lung squamous cellcarcinoma should be cleaning vesssed completely.