Conacher Klassifikation Trachealbronchus

One-lung

ventilation and 3D image analysis in a case of tracheal bronchus with steeply angled branching of left main bronchus: a case report. Modified schematic diagram of right TB classification (Conacher’s classification) [9]. Types I and II: the right TB is distant (> 2 cm) from the tracheal bifurcation. The distal trachea is either a narrow bronchial structure (type I) or a normal tracheal structure (type II). Type III: the right TB is close (< 2 cm) to the tracheal bifurcation and appears as a three-branching structure. TB: tracheal bronchus