Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 226.—Ureteral stone (pyelogram of Fig. 210). is well known. In case of a negative radiogram, when theclinical and cystoscopic data are suggestive of stone in theureter, characteristic dilatation of the ureter, as demon-strated in a pyelo-ureterogram, would permit the diagnosisof lithiasis. A small stone which the original radiogram hasfailed to show will occasionally become apparent followinga pyelogram because of absorption of the colloidal 242 PYELOGRAPHY In Fig. 227
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 226.—Ureteral stone (pyelogram of Fig. 210). is well known. In case of a negative radiogram, when theclinical and cystoscopic data are suggestive of stone in theureter, characteristic dilatation of the ureter, as demon-strated in a pyelo-ureterogram, would permit the diagnosisof lithiasis. A small stone which the original radiogram hasfailed to show will occasionally become apparent followinga pyelogram because of absorption of the colloidal 242 PYELOGRAPHY In Fig. 227 the lower left ureter is slightly dilated above theureterovesical juncture. The original radiogram was re-ported negative. The predominant symptoms were re-peated colic referred to the left kidney. If any doubtarises whether the lower ureter was actually dilated, itwould be removed by evidence of dilatation in the pelvis,?as demonstrated in Fig. 228. Definite dilatation is visible. Fig. 227.—Ureteral dilatation caused by stone (original a-ray negative). only in the calyces as the result of the mechanical obstruc-tion caused by stone which is probably situated in the ves-ical portion of the ureter. The portion of the ureter which lies in the bladder-wallwill not, as a rule, be dilated to the extent of the ureter im-mediately above. Stone in the intramural portion of theureter, particularly when near the meatus, usually causeslittle or no dilatation in that portion of the ureter. The URETERAL STONE 243
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
