[Aplasia and hypoplasia of the lung (author's transl)]

The different forms of aplasia and hypoplasia of the lung are described. Differences in anatomic structure, prognosis and concomitant congenital anomalies suggest two special forms of hypoplasia of the lung: a) aplasia of one lobe of a lung with hypoplasia of the rest of the lung--b) hypoplasia of all parts of a lung. Bronchographic and angiographic studies are necessary for the differentiation between the special forms of hypoplasia of a lung and diseases with similar radiographic findings. The possible combination of hypoplasia of one lung with ipsilateral anomalies is pointed out.