Evaluation of magnification radiography in bone tumors.

The additional information obtained by direct radiographic magnification is examined in comparison to standard exposures of 50 bone tumors. A diagnostically significant increase in information is obtained in 84% of these cases. This is distributed at an irregular rate over the various decisive phases of the tumor diagnosis. In 24% of the cases the magnification exposure was helpful excluding other diseases, in 40% it permitted a differentiation between benign and malignant lesions and in 20% it permitted a classification of the type. The clinical importance of the magnification technique is relevant.