Left tracheal bronchus: infrequent variant of ventilation of the apicoposterior segment(LB1 + 2) of the left upper lobe, which now does it directly from
trachea.
Left tracheal bronchus: infrequent variant of ventilation of the apicoposterior segment(LB1 + 2) of the left upper lobe, which now does it directly from
trachea.