Aim: The present study aimed to demonstrate that computed tomography-guided transthoracic needle biopsy (TTNB) is a safe procedure that gives a more accurate pre-operative tissue diagnosis for peripheral lung nodules than transthoracic needle aspiration, obtaining suitable samples for molecular test in lung adenocarcinomas. Patients & methods: Between December 2016 and March 2018 at Thoracic Surgery Department of the University of Palermo - Policlinico Paolo Giaccone hospital, TTNB was performed in 42 patients with computed tomography-detected peripheral lung nodules >10 mm, using 16-18-Gauge Tru-Cut needles. Results: With TTNB, we have estimated an accuracy for tissue diagnosis of 97.6%. At the molecular test, EGFR overexpression and ALK mutation resulted positive for 12/23 patients with lung adenocarcinoma. Conclusion: TTNB has showed a low rate of complications and it is adoptable as standard diagnostic procedure for peripheral lung nodules.
Keywords: ALK; EGFR; NSCLC; lung adenocarcinoma; lung nodule; molecular oncology; pre-operative diagnosis; target therapy; tissue diagnosis; transthoracic needle aspiration; transthoracic needle biopsy.