[Pneumopathia osteoplastica (pulmonary ossification) (author's transl)].

The Pneumopathia osteoplastica is a rare disease manifesting in two different forms of appearance. The tuberous (nodular) ossification affects mainly younger persons and is resulting in the great majority from chronic congestion of the lung due to mitral stenosis. Compared to it the idiopathic racemose (ramified) form affects older males. The paper is based on 9 cases of the two morphologic variants. The clinical aspects, etiologym morphology, and differential diagnosis of them are discussed with regard to newer publications.