Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 232.—Ureteral stone (ureterogram of Fig. 231) 246 PYELOGRAPHY it by a distinct break in its outline. This is due to thefact that the stone is situated in the intramural portion ofthe ureter, which does not dilate to the degree of the ureterabove the bladder-wall. Dilatation of the Ureter Below the Stone.—When dila-tation of the ureter is visible below the outline of the stone,. Fig. 233.—Ureteral stone. it is usually the result of inflammatory changes in the ure-teral wall subse
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 232.—Ureteral stone (ureterogram of Fig. 231) 246 PYELOGRAPHY it by a distinct break in its outline. This is due to thefact that the stone is situated in the intramural portion ofthe ureter, which does not dilate to the degree of the ureterabove the bladder-wall. Dilatation of the Ureter Below the Stone.—When dila-tation of the ureter is visible below the outline of the stone,. Fig. 233.—Ureteral stone. it is usually the result of inflammatory changes in the ure-teral wall subsequent to secondary infection. It is charac-terized by a uniform enlargement of the ureteral lumenin contrast to the irregular nodular dilatation which ac-companies return flow of the injected fluid. Evidence ofinflammatory dilatation may sometimes be the only evi- URETERAL STOXE 247 dence of the existence of a previous infection. Occasion-ally ureteral dilatation below a stone shadow may havebeen caused by mechanical obstruction of a stone previouslypassed. In Fig. 233 the dilatation visible in the outline ofthe ureter below the stone shadow is the result of secondaryinfection. Immediate Return Flow.—Although the urine may flowby a stone in the ureter with its usual volume, it is peculiarlytrue that often a solution injected from below will beunable to pass beyond the stone. Immediate return of theinjected medium at the site of a suspected shadow identi-fies its intra-ureteral pos
Size: 1359px × 1839px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
