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  • Title: The role of transbronchial lung biopsy in the diagnosis of solitary pulmonary nodule.
    Author: Trkanjec JT, Peros-Golubicić T, Grozdek D, Ivicević A, Alilović M.
    Journal: Coll Antropol; 2003 Dec; 27(2):669-75. PubMed ID: 14746157.
    Abstract:
    Transbronchial lung biopsy (TBLB) is a well-recognized diagnostic technique in diffuse interstitial lung diseases, but it is not considered to be the first choice in investigation of solitary pulmonary nodules (SPN). The main idea of this study was to increase the sensitivity of bronchoscopy using multiple techniques, especially TBLB, thus to avoid more aggressive diagnostic procedures. The objective of this prospective study was to evaluate the efficacy and safety of TBLB in the diagnosis of SPN, in comparison with other bronchoscopic techniques. Fifty patients with chest x-ray finding consistent with SPN underwent bronchoscopy with bronchial washing, brushing, bronchoalveolar lavage (BAL) and TBLB were included in this study. Thirty-one patients suffered from malignant tumors, while 19 patients had nonmalignant lesions. TBLB achieved overall diagnostic sensitivity of 62%, BAL of 29%, bronchial brushing of 16% and washing of 6%. Combining all techniques together, bronchoscopy had overall sensitivity of 86%. Concerning malignant lesions, TBLB had a sensitivity of 65%, specificity of 100%, and accuracy of 82%. TBLB had a significantly better yield for lesions with a diameter > or = 25 mm than for lesions of < 25 mm (sensitivity of 82% and 53% respectively, p < 0.05). Diagnostic yield improved significantly with the increasing number of specimens (less than 3 specimens: sensitivity 59%, 3 or more specimens: sensitivity 87%, p < 0.05). Complications of TBLB occurred in 2 (4%) patients: 1 incomplete pneumothorax and 1 hemorrhage. According to the results, we conclude that TBLB is an accurate and safe technique for the diagnosis of pulmonary solitary nodule with a diameter equal or greater than 25 mm.
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