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January 11, 1919, Vol 72, No. 2 >
ARTICLE | January 11, 1919

"THE ROENTGENOLOGIC STUDY OF EMPYEMA CAVITIES"

Emil G. Beck, M.D.
JAMA. 1919;72(2):137-138. doi:10.1001/jama.1919.02610020055022.
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ABSTRACT

To the Editor:  —In his article on "The Roentgenologic Study of Empyema Cavities" (The Journal, December 14, p. 1975), Dr. Franklin A. Stevens advocates an oil emulsion of bismuth subnitrate for the outlining of empyema cavities, as a substitute for bismuth paste. His reason for employing the oil mixture in preference to the petrolatum as given is that the oil mixture will fill all the crevices of the cavity and prevent bismuth absorption. Wishing to verify his experience, I desired to determine whether the oil and bismuth and powdered acacia will make a stable homogeneous mixture. I therefore made up the mixture as described and left it in the test tube overnight. In the morning I found all the bismuth at the bottom of the test tube and the pure transparent oil on top. Again the test tube filled with a 10 per cent, bismuth paste shows it to remain

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