title: [Transbronchial needle aspiration of hilar and mediastinal lymph nodes].
abstract: BACKGROUND
  Besides clarifying the etiology of unidentified lymphadenomegaly, puncturing hilar and mediastinal lymph nodes by a flexible bronchoscopic needle is an aid in diagnosing and staging broncho- genic cancer or other metastatic cancers.
  
  
  OBJECTIVE
  Our study had the principal objective to evaluate the positivity of transbronchial needle aspiration (TBNA).
  
  
  METHODS
  We evaluated retrospectively the effectiveness of all TBNA done in 74 consecutive patients. Forty-nine patients were male and the median age was 59. We used Wang-needles, 21-gauge (Bard, USA), and the same technique described for different authors. Of the 74 patients evaluated, 11(15%) showed mediastinal mass and 65 (85%) hilar mass. We observed 76 endoscopic abnormalities.
  
  
  RESULTS
  According to the classification of the specimens, we had 32/74 (43%) unsatisfactory specimens, 34/74 (46%) satisfactory and diagnostic specimens, and 8/74(11%) satisfactory and non-diagnostic specimens. Thirty four (46%) of the examinations were found to be positive out of the total amount of specimens. Of the positive results, 30/34 specimens (88%) contained malignant disease. Small-cell carcinoma was the most frequent finding, with 10/34 cases (29%); squamous cell carcinoma 7/34 (21%); adenocarcinoma 7/34 (21%), non- -small cell carcinoma 6/34 (17%); sarcoidosis 2/34 (6%) and tuberculosis 2/34 (6%).
  
  
  CONCLUSIONS
  Our study indicated that this method is safe, easy to per- form, with a minimum of complications and useful for the diagnosis and staging of pulmonary neoplasms.
authors.affiliation: Thoracic Oncology Group - Hospital do Câncer - HC I - INCA/MS.
authors.forename: Deborah
authors.initials: D
authors.lastname: Lannes
authors.forename: Andréia Salarini
authors.initials: AS
authors.lastname: Monteiro
authors.forename: Edson
authors.initials: E
authors.lastname: Toscano
authors.forename: Aureliano
authors.initials: A
authors.lastname: Cavalcanti
authors.forename: Marilene
authors.initials: M
authors.lastname: Nascimento
authors.forename: Paulo
authors.initials: P
authors.lastname: de Biasi
authors.forename: Mauro
authors.initials: M
authors.lastname: Zamboni
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044963:Biopsy, Fine-Needle / Q000379:methods*; D001980:Bronchi; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000473:pathology*; D008175:Lung Neoplasms / Q000473:pathology*; D008198:Lymph Nodes / Q000473:pathology*; D008297:Male; D008482:Mediastinum; D008875:Middle Aged; D012189:Retrospective Studies; D014132:Trachea