Pulmonary changes seen in lung purpura and some of the other collagen diseases.

The physician who specializes in pulmonary diseases has a most helpful aid in the form of chest roentgenography. This examination is secured routinely in many hospitals and clinics today. The roentgenogram is very accurate in finding pulmonary lesions. Accuracy in determining the type of lesion depends on the experience of the physician who is studying the patient.Pulmonary lesions occur in many systemic diseases. They may occur in some of the collagen diseases and at times they may be the first and also the most striking findings noted during the examination of a patient. For this reason, attention is called to some of the pulmonary findings encountered in certain of these diseases. Some of the clinical, roentgenologic and pathologic manifestations of necrotizing alveolitis, periarteritis nodosa, glomerulonephritis, disseminated lupus erythematosus, rheumatoid arthritis, and scleroderma are described.