Coexistence of two anatomical bronchial variances

A 70-year-old man with mediastinal lymphadenopathy was referred to our centre for endobronchial ultrasound with transbronchial needle aspiration. During the bronchoscopic examination, two separate anatomical bronchial variances were observed: a supernumerary ‘true’ tracheal bronchus branching off from the distal right lateral wall of the trachea (figure 1A) and a displaced aberrant ‘tracheal’ bronchus arising from the distal lateral wall of the left main stem bronchus (figure 1B). There was a normal right upper lobe bronchus but the upper division truncus of the …