. Röntgen ray diagnosis and therapy . Fig. 78.—Biliary Calculus. 124 THE RONTGEN EAYS membered that a calculus may consist of different salts. In oneof the authors cases five layers were found, the nucleus and thirdlayer consisting of calcium carbonate, its branches of a combina-. Fig. 79.—Numerous Biliary Calculi in much Distended Gall-bladdek. tion of calcium carbonate and triphosphate, and the outer crystal-line layer of carbonate of magnesium and ammonium. Under such circumstances the nucleus will be more markedif a tube of moderate hardness is used, while the branches will be ABDOMKX 125
. Röntgen ray diagnosis and therapy . Fig. 78.—Biliary Calculus. 124 THE RONTGEN EAYS membered that a calculus may consist of different salts. In oneof the authors cases five layers were found, the nucleus and thirdlayer consisting of calcium carbonate, its branches of a combina-. Fig. 79.—Numerous Biliary Calculi in much Distended Gall-bladdek. tion of calcium carbonate and triphosphate, and the outer crystal-line layer of carbonate of magnesium and ammonium. Under such circumstances the nucleus will be more markedif a tube of moderate hardness is used, while the branches will be ABDOMKX 125 more conspicuous if a soft one is employed. As a rule, tubesshould be chosen that are slightly harder than those used for skia-graphing biliary calculi. The time of exposure should be fourminutes in thin and about six minutes in stout individuals. Agood skiagraphic representation of nephrolithiasis renders an ex-ploratory incision unnecessary. It will settle the question of thepresence or the absence of concretions, and in case an operation isindicated, it will give valuable hints as to the technique. While, as has been said above, a negative result cannot be re-lied upon in a case of suspected cholelithiasis, a good skiagraphicplate which does not show the presence of r
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