Endobronchial lung cancer tend to manifest in three different patterns. It can present as a bulky, exophytic mass lesion, submucosal infiltration or extrinsic compression from peribronchial disease. Bronchoscopy with differents techniques as forceps biopsy, bronchial brushing and bronchial washing is recognized as the gold standard to diagnose central airways lung neoplasms. Some authors suggested that the addition of endobronchial needle aspiration (EBNA) to these conventional diagnostic methods may increase the sensitivity of bronchoscopy in submucosal and peribronchial disease but few prospective trials have been performed and this procedure is still underutilized in many centers. Rapid on-site evaluation (ROSE) showed to improve yield of transbronchial needle aspiration (TBNA) of mediastinal nodes and pulmonary peripheral lesions, reducing the number of inadequate specimens and costs. However, its utility during endobronchial needle aspiration has not been substantiated.

This prospective study has two primary objectives: to compare the sensitivity of ROSE-EBNA with that of the conventional technique and to investigate the diagnostic yield of endobronchial needle aspiration and its contribution to CDM in the evaluation of patients with endobronchial lesions.

Inclusion Criteria:

• consecutive adult patients with a suspected central lung cancer at a chest CT scan who need a bronchoscopy for diagnostic purposes

Exclusion Criteria:

• presence of uncontrolled coagulopathy, preexisting known malignancies, and the refusal to sign an informed consent