title: [The role of transbronchial needle aspiration in the staging of bronchogenic carcinoma].
abstract: BACKGROUND
  To explore the role of transbronchial needle aspiration (TBNA) in the staging of bronchogenic carcinoma.
  
  
  METHODS
  To 42 cases of primary bronchogenic carcinoma with suspected lymph node metastasis by X-ray and CT scan of chest, the TBNA was performed before operation. The cytological results and c-TNM by TBNA were compared with the pathological ones and p-TNM after operation.
  
  
  RESULTS
  The diagnosis of 10 cases with N₂ metastasis was completely corresponding by TBNA and pathological examination after operation. Nineteen out of 22 cases with N₁ metastasis were confirmed by TBNA, and the false negative results ocurred in 3 cases. The results of TBNA in lymph nodes' size from 2 to 3 cm was completely accordant with pathological ones after operation. For 1 to 2 cm lymphnodes, the accurate rate of TBNA was 88.5% (23/26). The overall accurate rate of c-TNM by TBNA was 85.7% (36/42) compared with p-TNM. A small amount of hemoptysis ocurred in 3 cases, no pneumothorax and other serious complications were observed.
  
  
  CONCLUSIONS
  The TBNA for staging of bronchogenic carcinoma is a simple and economic method with high correct rate and high clinical applicable value.
authors.affiliation: The Department of Thoracic Surgery, The Fourth Affiliated Hospital of Hebei Medical University,Shijiazhuang, Hebei 050011, P.R.China.
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
authors.forename: Jianjing
authors.initials: J
authors.lastname: Han
authors.forename: Jifang
authors.initials: J
authors.lastname: Yao
authors.forename: Zenglin
authors.initials: Z
authors.lastname: Wang