Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 39.—Normal pelvis. When the pelvis is incompletely filled and an opaquecatheter is used, the ureter may appear to leave the pelvisat unusual angles. This may be explained by the factthat the elasticity of the ureter permits the catheter tomove in unusual positions, while the absence of the colloidalsilver fails to outline the ureteropelvic juncture. In the outline of both pelves is unusual, largely because ofincomplete distention of the true pelvis. Of particularinterest
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 39.—Normal pelvis. When the pelvis is incompletely filled and an opaquecatheter is used, the ureter may appear to leave the pelvisat unusual angles. This may be explained by the factthat the elasticity of the ureter permits the catheter tomove in unusual positions, while the absence of the colloidalsilver fails to outline the ureteropelvic juncture. In the outline of both pelves is unusual, largely because ofincomplete distention of the true pelvis. Of particularinterest is the direction of the opaque catheter as it leaves THE NORMAL PliLVIS 73 the pelvis. The absence of the injected medium in bothureters gives an erroneous impression of the position of theureteropelvic juncture. The Normal Ureter.—Because of the elasticity of thewalls of the ureter, and because of the technical difficultyof completely filUng it with an opaque fluid, it is usuallyimpossible to demonstrate the complete outline of the en-tire ureter. As a result of the incomplete distention the. Fig. 40.—Normal pelvis and ureter. outline of the ureter may appear more or less areas of anatomic narrowing are frequently visible inthe outline of the ureter a short distance below the uretero-pelvic juncture, and where the ureter enters the wall of thebladder. The portion of the ureter extending from thetrue pelvis to the first point of narrowing is usually morefully distended and its lumen appears larger. It is ap-parently a part of the true pelvis, from which it tapersgradually to the point of narrowing. The next visible 74 PYELOGRAPHY point of narrowing is where the ureter enters the wall ofthe bladder, beyond which the ureteral lumen suddenlynarrows. The course of the normal ureter is, as a rule, fairly uni-form unless it is altered by pressure of a stiff catheter ormarked renal excursion. Occasionally angulation in the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
