A Radiographic Technique for the Study of Lung Pathology

During a radiographic study of lung specimens injected with various radio-opaque materials we were impressed by the amount of detailed structure which could be identified in uninjected areas. It was therefore considered worth while attempting to develop a method for the examination of uninjected lungs by radiography, which, when used in con-junction with recognized histological methods, might provide further information on the structure of lung tissue in health and in disease. MATERIALS To test the method, many lung specimens obtained surgically and post mortem and containing a wide variety of pathological lesions were radiographed. These specimens had been fixed in 10 % formol-saline; in the more recent ones this had been injected into the trachea