Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 215.—Ureteral stone (ureterogram of Fig. 214). URETERAL STONE 233 ulum is present at the site of the stone, the exact conditionwould be demonstrated in the ureterogram. If the rela-tion of a stone so situated to an opaque catheter were re-lied upon, the distance separating the two would easily leadone to believe the stone to be extra-ureteral. Such local-. Fig. 216.—Ureteral stone and dilatation. ized dilatation at the site of the stone may be indicative ofmarked periureteritis
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 215.—Ureteral stone (ureterogram of Fig. 214). URETERAL STONE 233 ulum is present at the site of the stone, the exact conditionwould be demonstrated in the ureterogram. If the rela-tion of a stone so situated to an opaque catheter were re-lied upon, the distance separating the two would easily leadone to believe the stone to be extra-ureteral. Such local-. Fig. 216.—Ureteral stone and dilatation. ized dilatation at the site of the stone may be indicative ofmarked periureteritis or even of perforation of the uretercaused by the stone. Dilatation Above Ureteral Shadow.—The extent of thedilatation which may be apparent above a stone in theureter will vary with the degree of obstruction. The dila- 234 PYELOGRAPHY tation may be so slight that it is difficult of differentiationfrom the shadow caused by return flow of the injected fluidwhich is frequently seen in a flaccid ureter. Further, aureter may be dilated to a considerable extent, but unless itis fully distended, the dilatation may not be rendered vis-ible in the ureterogram. As a rule, however, a moderatedegree of dilatation will be readily demonstrated in the
Size: 1656px × 1508px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
