Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . n the ordinary main problem in the localization of the stone is to de-termine whether it is situated in the true pelvis, in a calyx,or in the cortex. Stone in the True Pelvis.—If the stone is situated withinthe pelvis, its shadow will either be obliterated entirely bythat of the injected pelvis or it will be seen faintly throughit, depending upon the relative density of the stone and theinjected solution. With a comparatively weak solutioninjected into the pelvis, and w
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . n the ordinary main problem in the localization of the stone is to de-termine whether it is situated in the true pelvis, in a calyx,or in the cortex. Stone in the True Pelvis.—If the stone is situated withinthe pelvis, its shadow will either be obliterated entirely bythat of the injected pelvis or it will be seen faintly throughit, depending upon the relative density of the stone and theinjected solution. With a comparatively weak solutioninjected into the pelvis, and with the injected fluid dilutedby retained fluids, the stone shadow may appear fairly dis-tinct through the pelvic outline; therefore, in locating stoneshadows it would be advantageous to use a weak solutionof the injected medium provided it is concentrated enoughto show pathologic changes in the pelvic outline for thepurpose of identification. It is obvious that if the pelviscould be distinctly outlined by means of a gaseous mediumthe contrasting shadows of gas and stone would permit of13 194 PYELOGRAPHY. Fig. 162.—Renal stone. , 5,..... - -.• .?»
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
