[The pathologic anatomy of important forms of bacterial pneumonia].

Postmortem examinations were conducted on 7,952 cases with acute inflammatory processes of respiratory organs, among them 452 adults, between 1949 and 1988. Bacteria had been responsible for 87.5%, of these pneumonia cases, including Klebsiella for 15.3%, Pseudomonas for 13.5%, staphylococci for 9.9%, pneumococci for 4%, streptococci for 3.9% and Haemophilus for 0.7%. Other bacterial species of lower pathogenicity were recorded from 24.4% of all individuals who had died with pneumonia and mixed bacterial flora from another 29.3%. Pneumococcal and streptococcal forms of pneumonia were predominant in untreated patients. Staphylococci and gram-negative bacteria were primarily recorded from inflammatory foci, following penicillin treatment. Macroscopic and microscopic peculiarities are discussed in greater detail, together with aspects relating to the pathogenesis of forms of pneumonia caused by different pathogens.