title: [Ultrasound guided transbronchial needle aspiration as a diagnostic tool for lung cancer and sarcoidosis].
abstract: BACKGROUND
  The aim of the study was to assess the diagnostic yield of ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in mediastinal or hilar adenopathy in: 1) staging of non-small cell lung cancer (NSCLC) (97); 2) other malignant neoplasms including: small cell lung cancer (SCLC), metastatic neoplasms and Hodgkin's disease (16); 3) NSCLC recurrence (7); 4) sarcoidosis and other non-malignant diseases (29).
  
  
  METHODS
  Real time EBUS-TBNA was performed under local anaesthesia and sedation in 149 consecutive patients - 237 biopsies in groups of lymph nodes: subcarinal (7) - 107, all paratracheal (2R, 2L, 4R, 4L) - 86, hilar (10R, 10L) - 41 and interlobar (11R, 11L) - 3. A mean axis of punctured node was 15 mm (range: 7-42 mm). All negative results were verified by transcervical extended bilateral mediastinal lymphadenectomy (TEMLA), mediastinoscopy or thoracotomy.
  
  
  RESULTS
  Lymph node biopsy was technically successful in 92% and was diagnostic in 55% of lung cancer patients and in 85.7% of sarcoidosis patients. In NSCLC staging sensitivity of EBUS-TBNA was 88.7%, specificity 100%, accuracy 92.8% and NPV 83.3% (89.7%, 100%, 94.9% and 90.9% per biopsy), and in the whole group it was 91.5%, 98.7%, 94.6% and 87.3% respectively. In 7.2% of NSCLC staging patients with false negative results of EBUS-TBNA (mainly subcarinal) there was observed partial involvement of metastatic lymph nodes, mean 34.3% (range 10-50%), confirmed by TEMLA.
  
  
  CONCLUSIONS
  The diagnostic value of EBUS-TBNA is very high in lung cancer, NSCLC staging and sarcoidosis.
authors.affiliation: Samodzielny Publiczny Specjalistyczny Szpital Chorób Pluc, ul. Gladkie 1, Zakopane. artondo@mp.pl
authors.forename: Artur
authors.initials: A
authors.lastname: Szlubowski
authors.forename: Jarosław
authors.initials: J
authors.lastname: Kuzdzał
authors.forename: Juliusz
authors.initials: J
authors.lastname: Pankowski
authors.forename: Anna
authors.initials: A
authors.lastname: Obrochta
authors.forename: Jerzy
authors.initials: J
authors.lastname: Soja
authors.forename: Jolanta
authors.initials: J
authors.lastname: Hauer
authors.forename: Marcin
authors.initials: M
authors.lastname: Kołodziej
authors.forename: Marcin
authors.initials: M
authors.lastname: Zieliński
mesh_terms: D000328:Adult; D000368:Aged; D044963:Biopsy, Fine-Needle / Q000379:methods*; D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging / Q000556:secondary; D005260:Female; D006689:Hodgkin Disease / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008206:Lymphatic Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods; D011044:Poland; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D017565:Sarcoidosis, Pulmonary / Q000000981:diagnostic imaging* / Q000473:pathology*; D012680:Sensitivity and Specificity; D055752:Small Cell Lung Carcinoma / Q000000981:diagnostic imaging / Q000556:secondary; D014463:Ultrasonography