[Invasive diagnostic techniques for diffuse interstitial pneumopathies]

Interstitial lung diseases represent a very heterogeneous group of diseases mainly affecting connective lung tissue even if alveolar space may sometimes be involved. The identification of their etiology is the key stage in their management. It requires the integration of anamnestic, clinical, biological, radiological data and, sometimes relies on, cytology or histology. In this review, we assess the contribution and feasibility of the different invasive techniques used for interstitial lung disease diagnosis. In particular we focus on the yield of lung endoscopy in casting light on the multidisciplinary confrontation, which is the gold standard of the interstitial lung disease care management.