Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 257.—Renal tumor—neoplasm. Deformity at the Ureteropelvic Juncture and UpperUreter.—When the tumor involves the pelvis to a consider-able extent, it may also encroach upon the adjacent portionof the ureter. As in the pelvis, such involvement mayeither cause retraction of the walls of the ureter or oblitera-tion of its lumen. With tumor retraction of the upper ureterits lumen is usually of the same size and merges with that of RENAL TUMOR 2(39 the true pelvis. In Fig. 257 the pel
Pyelography (pyelo-ureterography) a study of the normal and pathologic anatomy of the renal pelvis and ureter . Fig. 257.—Renal tumor—neoplasm. Deformity at the Ureteropelvic Juncture and UpperUreter.—When the tumor involves the pelvis to a consider-able extent, it may also encroach upon the adjacent portionof the ureter. As in the pelvis, such involvement mayeither cause retraction of the walls of the ureter or oblitera-tion of its lumen. With tumor retraction of the upper ureterits lumen is usually of the same size and merges with that of RENAL TUMOR 2(39 the true pelvis. In Fig. 257 the pelvic outline, althoughdim, is irregularly squared, the lower calyx being upper ureter is unusually wide as the result of retrac-tion of the surrounding tumor tissue for a short distance be-low the ureteropelvic juncture. If the ureter is involved by invading tumor tissue, its out-line becomes obliterated to the extent of the tumor Fig. 258.—Pelvic deformity simulating renal tnmor. Occasionally a blood-clot may coagulate in the pelvis andupper ureter and simulate tumor involvement. In case ofpartial obliteration by either blood-clot or tumor, the re-maining space would be demonstrated by irregular Figs. 258 and 259 the pelvic outline is obliterated, whilethat of the ureter is visible as an irregular spiral shadow ex-tending from a point several inches below the ureteropelvicjuncture to the upper portion of the sacrum. The peculiar 270 PYELOGEAPHY outline was due to a blood-clot which obliterated the lumenof the pelvis and first portion of the ureter and partiallyfilled the portion of the ureter outlined by the spiral operation the pelvis and ureter were found moderatelydistended by a well-coagulated blood-clot. The kidney ap-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectkidneys, bookyear1915
