any structural anomaly of any of the anatomically and functionally distinct subunits (lobes) comprising the left or right lung, where each lobe receives air from its own secondary bronchus and is separated from it neighbors by one or more fissures (walls of connective tissue)
abnormal lung position or orientation +
abnormal lung size +
abnormal lung vasculature morphology +
abnormal pulmonary alveolar system morphology +
abnormal pulmonary collagen fibril morphology
abnormal pulmonary elastic fiber morphology
abnormal respiratory conducting tube morphology +
abnormal right lung morphology +
abnormal susceptibility to pulmonary hyaline membrane formation +