. Roentgen interpretation; a manual for students and practitioners . o the formation of a large sac,depending upon the site of the obstruction and the length of itsexistence. With obstruction near the kidney the characteristicearly change is blunting of the minor calices. With obstructionnear the bladder, on the other hand, dilatation of the pelvis and acertain amount of rounding of its outline is the characteristic find- 198 GEN I TO-URINARY TRACT ing. In the later stages of the process both major and minor calicesmay disappear and the thorium collect in a pool in the sac withremains of the k
. Roentgen interpretation; a manual for students and practitioners . o the formation of a large sac,depending upon the site of the obstruction and the length of itsexistence. With obstruction near the kidney the characteristicearly change is blunting of the minor calices. With obstructionnear the bladder, on the other hand, dilatation of the pelvis and acertain amount of rounding of its outline is the characteristic find- 198 GEN I TO-URINARY TRACT ing. In the later stages of the process both major and minor calicesmay disappear and the thorium collect in a pool in the sac withremains of the kidney. The discovery of a stone in the ureter isconfirmatory evidence of the process in the pelvis. In inflammatory conditions the chief change is in the majorcalices which are apt to have irregular, moth-eaten edges and to beincreased in length and width. In the later stages they may showrounded dilatations at their extremities. The form of the pelvisvaries according to the amount of destruction of the kidney sub-stance and the amount of distention of the Fig. 174.—The injected pelvis of an infected kidney. Tuberculosis.—The characteristic change here is lengthening ofthe major calices with pronounced bulbous dilatation at the tipsand the occurrence of rounded masses of thorium in the cortex,representing cavities communicating with the pelvis. Stricture ofthe ureter may prohibit the filling of the kidney pelvis. Growths.—Extrarenal and parenchymal tumors may causedeformities in the pelvis and calices which are similar in all is not always possible in the presence of a distorted pelvis showingan irregular loss of calices to say whether it is due to incomplete URETERS 199 filling, extrarenal tumor or a growth in the cortex. The amount ofdeformity produced in the pelvis depends upon the size and loca-tion of the tumor. A very characteristic picture is the irregularprolonged extension of one or more calices to a considerable distancebeyond the usual limi
Size: 1773px × 1410px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidroentgeninte, bookyear1919
