Advances in bronchoscopic techniques for the diagnosis of lung cancer Interventional pulmonology uses minimally invasive techniques to diagnose and treat lung cancer, pleural disease, and many types of complex airway and lung disorders. Over the past decade, interventional pulmonology has seen significant progress in the field of endoscopic procedures, particularly in the diagnosis, staging, and sometimes treatment of lung cancer. The research topic "Advances in Bronchoscopic Techniques for the Diagnosis of Lung Cancer" brings together diverse contributions that showcase the latest innovations in bronchoscopy. Here we highlight the innovative advances presented in the articles within this Research Topic from the perspective of an interventional pulmonologist. When faced with a lung lesion suspected to be lung cancer on chest computed tomography (CT) it is imperative to evaluate the least invasive and most effective diagnostic approach. Among the potential options, the bronchoscopic approach offers the advantage of directly visualizing the airways and the ability to perform biopsies of mucosal alterations. In their original research article, Zhu et al. employed narrow-band imaging (NBI), an endoscopic technique for evaluating surface patterns and microvascular architecture using a narrow spectrum of light that retains only blue and green wavelengths. The study included 916 patients with clinical or radiologic suspicion of central lung cancer or patients undergoing follow-up after curative lung cancer surgery, all of whom underwent bronchoscopy with NBI. Compared with pathological findings, NBI demonstrated diagnostic sensitivity, specificity, positive predictive value, and negative predictive value of 91.7%, 84.9%, 97.6%, and 61.5%, respectively. The article also describes the predominant vascular pattern in relation to the histologic types. If the lung lesion is peripheral rather than central, it can still be accessed with a bronchoscope using other technologies, such as fluoroscopy and/or a radial endobronchial ultrasound (R-EBUS) probe. This, inserted through the working channel of a flexible bronchoscope or catheter (guide sheath), facilitates real-time imaging of the surrounding tissue, enabling the clinician to confirm the location of the lesion. Hu et al., in their original research article, analyzed the clinical significance of the resistance encountered by the R-EBUS probe when passing through peripheral lung lesions for diagnostic purposes. Probe resistance was classified as type I (no resistance), type II (moderate), and type III (high). A significant difference in the diagnostic yield between malignant and benign disease was Frontiers in Oncology frontiersin.org 01