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Original ArticleOpen Access
Transbronchial Needle Aspiration in the Diagnosis of Bronchogenic Carcinoma
Vattanathum A 
,
Wongsa A ,
Tantamacharik D ,
Palwatwichai A ,
Chantarotom S ,
Chanthadisai N
,
Wongsa A ,
Tantamacharik D ,
Palwatwichai A ,
Chantarotom S ,
Chanthadisai N Transbronchial needle aspiration (TBNA) via a fiberoptic bronchoscope has been used for
diagnosis of lung cancer by Wang since 1981. The technique uses a fiberoptic bronchoscope with a
flexible needle that can penetrate the wall of the trachea and major bronchi. It is still underutilized
and markedly depends on the physician's skill. We present our experience of TBNA for diagnosis
of bronchogenic carcinoma. TBNA was performed on 47 consecutive patients with suspected lung
cancer at the time of diagnosis bronchoscopy. Thirty six patients were diagnosed with bronchogenic
carcinoma. TBNA demonstrated bronchogenic carcinoma in 61.1 per cent of the cases (22
of 36) and TBNA alone confirmed a malignant diagnosis in 33.3 per cent (12 of 36). The overall
diagnostic yield of bronchoscope utilizing the conventional techniques of bronchial washing,
brushings and biopsy was 50 per cent. With the addition of TBNA, bronchoscopy was diagnostic
in 83.3 per cent of the patients. There were no serious complications. We concluded that TBNA is a
safe technique that can significantly increase the diagnostic yield of conventional fiberoptic bronchoscopy
in the diagnosis of bronchogenic carcinoma.
Key word : Diagnosis, Lung Cancer, Bronchogenic Carcinoma, Transbronchial Needle Aspiration, TBNA
diagnosis of lung cancer by Wang since 1981. The technique uses a fiberoptic bronchoscope with a
flexible needle that can penetrate the wall of the trachea and major bronchi. It is still underutilized
and markedly depends on the physician's skill. We present our experience of TBNA for diagnosis
of bronchogenic carcinoma. TBNA was performed on 47 consecutive patients with suspected lung
cancer at the time of diagnosis bronchoscopy. Thirty six patients were diagnosed with bronchogenic
carcinoma. TBNA demonstrated bronchogenic carcinoma in 61.1 per cent of the cases (22
of 36) and TBNA alone confirmed a malignant diagnosis in 33.3 per cent (12 of 36). The overall
diagnostic yield of bronchoscope utilizing the conventional techniques of bronchial washing,
brushings and biopsy was 50 per cent. With the addition of TBNA, bronchoscopy was diagnostic
in 83.3 per cent of the patients. There were no serious complications. We concluded that TBNA is a
safe technique that can significantly increase the diagnostic yield of conventional fiberoptic bronchoscopy
in the diagnosis of bronchogenic carcinoma.
Key word : Diagnosis, Lung Cancer, Bronchogenic Carcinoma, Transbronchial Needle Aspiration, TBNA
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