Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 137.—Normal pelvis with return flow. by return flow is irregularly distributed along the course ofthe ureter, whereas the dilatation caused by inflammation isuniform. With return flow the lower portion of the ureteris seldom outlined, while with an inflammatory process thedilatation in the lower portion is often outlined better thanin the upper. In Fig. 137 return flow from the pelvis isvisible to a short distance below the ureteropelvic no inflammatory process is
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 137.—Normal pelvis with return flow. by return flow is irregularly distributed along the course ofthe ureter, whereas the dilatation caused by inflammation isuniform. With return flow the lower portion of the ureteris seldom outlined, while with an inflammatory process thedilatation in the lower portion is often outlined better thanin the upper. In Fig. 137 return flow from the pelvis isvisible to a short distance below the ureteropelvic no inflammatory process is present may be inferred INFLAMMATORY DILATATION 169 from the noimal outline of the major and minor Fig. 138 the outline of the well-filled ureter appears solarge that the existence of a moderate degree of inflam-matory dilatation must be inferred. Moreover, the out-lines of the calyces in the pelvis are slightly clubbed, hav-ing changes which occur with an early inflammatory proc-ess. The lack of uniformity in the ureteral outline is the. Fig. 138.—Inflammatory dilatation with return flow. result of incomplete distention. A definite degree ofinflammatory change in the ureter is very evident in The dilatation is comparatively uniform throughoutthe course of the ureter. The first portion is distinctlytortuous. With a marked degree of inflammatory change in the wallof the ureter the course of the ureter may become quite tor-tuous, particularly in the first third. This may be explained 170 PYELOGRAPHY by the fact that the ureteral wall as it becomes dilated in-creases in a longitudinal as well as a lateral direction. Oc-casionally the tortuous course may aid in recognizing theexistence of a mild inflammatory process when the dilata-tion in the ureter and pelvis is so slight as to be recognizedwith difficulty. In Fig. 122 the course of the entire ureter ismarkedly tortuous, a result of inflammation. With extensive dilatation of the ureter it may be quitediffi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
