Interstitial lung diseases of the interstitial-proliferative type

The term of "chronic interstitial pneumonia" had been more accurately redefined by Liebow and, subsequently, by Otto and had been subdivided by different pathomorphological phenomena. The interstitial-proliferative type is of particular interest, in this context. Reported in this paper is the bioptic histopathological pattern of 15 patients with interstitial lung disease of the interstitial-proliferative type, with these findings being correlated to clinical symptoms. A distinction is made between an independent form in its own right and a histologically identical interstitial phenomenon accompanying other pulmonary diseases, primarily in concomitance with lung cancer, and recordable also from postmortem investigations. Interstitial-proliferative inflammations are adequately controllable by antibiotics.