Summary. The late occurrence of broncial impairment in two children who had aspirated ferrous sulphate tablet ih presented. Local release of cytotoxic oxidant radicals led up to tissue necrosis and consequently to bronchial stenosis and obliteration. Bronchoscopy in the first child confirmed total obliteration of the left main bronchus eleven months after aspiration of iron tablet, and pulmectomy had to be done. In the second child five months after aspiration of iron tablet bronchoscopy confirmed severe stenosis of the right main bronchus and atelectasis of the right lung lobe. Reventilation of right lung has been achieved one month after administration of antibiotics, metilprednisolon and physical therapy. The patient underwent laser therapy (few times) and baloon dilatation in the University Clinic in Graz, but it did not hold passability of the right bronchus. Reventilation of the right middle and lower lobe (but not upper lobe) has been achieved by insertion of endobronchial stent in the main right bronchus. Formation of granulomatous tissue at stent borders necessizated further laser therapy and baloon dilatation. Treatment of this child must be continued.