A Case of Polyarteritis Nodosa with Multiple Infarcts in the Lungs S. SOCHOCKY, M.D.  Diseases of the Chest  Volume 32, Issue 3, Pages 335-338 (September 1957) DOI: 10.1378/chest.32.3.335 Copyright © 1957 The American College of Chest Physicians Terms and Conditions

Figure 1 X-ray film of chest taken August 9, 1955 shows rounded opacities in both upper and mid zones of both lungs with fluid in the left. base. Diseases of the Chest 1957 32, 335-338DOI: (10.1378/chest.32.3.335) Copyright © 1957 The American College of Chest Physicians Terms and Conditions

Figure 2 X-ray film taken August 20, 1955 shows rounded opacities seen in film taken on August 9, 1955 still present; clear costophrenic angle but with pleural fluid in the right base. Diseases of the Chest 1957 32, 335-338DOI: (10.1378/chest.32.3.335) Copyright © 1957 The American College of Chest Physicians Terms and Conditions

Figure 3 Low-power view of a pulmonary infarct (× 2.5). The infarct is the sharply defined dark, sub-pleural area. It is covered by thickened pleura, has a necrotic centre and on its pulmonary aspect a zone of polymorphonuclear infiltration. The underlying lung features patchy pneumonia and oedema. (H and E stain.) Diseases of the Chest 1957 32, 335-338DOI: (10.1378/chest.32.3.335) Copyright © 1957 The American College of Chest Physicians Terms and Conditions

Figure 4 High power view (× 130) of an acute disorganisation of a renal arteriole by fibrinoid necrosis and polymorphonuclear invasion of its wall; similar changes are present in other vessels of the same section. The capillary tufts of many glomeruli are also involved, see for example in corner of photograph. (H and E stain.) Diseases of the Chest 1957 32, 335-338DOI: (10.1378/chest.32.3.335) Copyright © 1957 The American College of Chest Physicians Terms and Conditions