[Morphogenesis of cystic abnormalities of the lung].

The material used was the pathomorphological studies of cystic developmental lung defects with consideration of X-ray and clinical data. In total 126 cases have been studied including: 72 cystic lung hypoplasias, 38 solitary cysts, 8 sequestrations, 8 bronchogenic cysts of mediastinum. Cystic hypoplasia revealed branching of cystic cavities and sometimes their connection with respiratory compartments. The other above mentioned defects reveal sometimes the connection between cysts, bronchi and respiratory compartments. Consequently with the formation of cystic developmental lung defects the development of pneumomers is not stopped but continues in a distorted form (dysplasia) which is necessary to take into consideration in the differential diagnostic of congenital and acquired (postnatal) cystic lung formations.