Bronchiectasis is a chronic disease syndrome manifested by a productive cough, subsequent to structural changes in the bronchial walls resulting from bacterial infection and leading to the retention of secretions. In some patients, the cause of bronchiectasis is chronic diseases, such as cystic fibrosis, ciliary dyskinesia, α1-antitrypsin deficiency, or congenital immune disorders. However, there are cases of bronchiectasis without underlying chronic disease, e.g. as a consequence of severe lower respiratory tract infection (bacterial or viral) or local airway obstruction, caused by foreign body aspiration or external pressure. Currently, it is believed that in some patients bronchial deformations may be reversible with a sufficiently quick diagnosis and implementation of treatment. The paper presents the cases of 3 children in whom the resolution of dilated lesions was confirmed by computed tomography.