Transthoracic fine needle biopsy with a coaxially semi automated cutting needle

Study was carried out between November 2007 and July 2009 in the KaradenizTechnical University, Faculty of Medicine, Department of Radiology. In this study, a totalof 116 CT-guided transthoracic needle biopsy is considered, while 5 of the patients were arepeat biopsy for a second time. The age range of patients in the study was 25-90 years andthe mean age was 62.Among of 109 lesions underwent core biopsy, 47(43%) as specific malignant,24(22%) as non-specific malignant, 6(6%) as specific benign, 26(24%) as nonspecificbenign was diagnosed histopathologically. The sensitivity, specifity, and diagnosticefficiency of the core biopsy were 81.6%, 100.0%, and 85.0%, respectively.The sensitivity and diagnostic efficiency in the consolidated and unconsolidatedmass lesions of 2-5cm in size was lower than those in the consolidation and unconsolidatedmass lesions of 2-3cm in size.According to our results, FNAB has a low success to make a specific diagnosiscompared with tru-cut biopsies or with combination biopsies.Peri- and post-operative complications were pneumothorax in 29 (25%) of thepatients, parenchymal hemorrhage in 32 (27.6%) of the patients, and hemoptysis in 1(<1%) of the patients.There were no statistically significant differences between gender or age or necrosisor presence of emphysema or the cavity with the appearance of the pneumothorax.However, the appearance of pneumothorax was related with the lesion depth or lesionmorphology.The statistically significant difference between sex or age or lesion size or lesionmorphology or the presence of necrosis or cavity with the insertion rate of chest tube forthe treatment of pneumothorax was not found. However, there were statistical significancedifferences between the deep-seated lesions or emphysema with the insertion rate of chesttube for the treatment of pneumothorax.The differences between sex or age or presence of emphysema or the cavity withthe development of parenchymal hemorrhage were not statistically significant. However,the parenchymal hemorrhage was related with small and deep seated lesions or lesionmorphology or the presence of necrosis.