Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 88.—Hydronephrosis. MECHANICAL DILATATION 119 Unless the pelvis is fairly well distended, an erroneousimpression of the size of the hydronephrosis may be gainedfrom the pyelogram. In Fig. 89 the pelvis appears dilatedto a moderate degree. The calyces appear blurred and butpartially outhned because of incomplete distention by theinjected medium. At operation hydronephrosis of over150 was found which required Fig. 89.—Hydronephrosis. An element which may affect
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 88.—Hydronephrosis. MECHANICAL DILATATION 119 Unless the pelvis is fairly well distended, an erroneousimpression of the size of the hydronephrosis may be gainedfrom the pyelogram. In Fig. 89 the pelvis appears dilatedto a moderate degree. The calyces appear blurred and butpartially outhned because of incomplete distention by theinjected medium. At operation hydronephrosis of over150 was found which required Fig. 89.—Hydronephrosis. An element which may affect the general contour of thedilated pelvis is that of secondary infection. With the in-terference to drainage secondary infection is frequentlyestablished, and, if this goes on to a considerable degree,it may markedly affect the general pelvic outhne. Thepelvis may then become more irregular in outline and thecalyces irregularly rounded. Large Hydronephroses.—The demonstration of large 120 PYELOGRAPHY hydronephrosis by means of pyelography is, as a rule, un-necessary, since its existence may ordinarily be determinedby means of the cystoscope and ureteral catheter. How-ever, because of the difficulty in interpreting the nature ofan obstruction met by the ureteral catheter, or in recogniz-ing retained fluid by the usual cystoscopic technic, it may
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
