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Transthoracic percutaneous fine-needle aspiration


CT-guided transthoracic fine-needle aspiration cytology (FNAC) or biopsy is carried out when it is difficult to obtain representative material using bronchoscopy. This applies especially if the lesion is situated peripherally in the lung. 

The technique has high diagnostic precision, with a sensitivity and specificity over 90% for identifying malignancy. In patients who are not suitable for surgery and who have a peripheral tumor, this technique may be crucial for making a correct diagnosis. 

If the lesion is in contact with the pleura or thoracic wall, the procedure can often be carried out using ultrasound guidance.


  • Tumor-suspect lung lesion


  • Obtain representative material from the lesion to make a cytological or histological diagnosis

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