. Wisconsin medical recorder . the ureter. (Left). Obstructed kidney. I performed nephrectomywith perfect recovery. The kidney was practically destroyed and the distended uro-ureter almost occupied the entire abdominal cavity with adjacent viscera compressedto minimum dimension. companied by periodic or intermittenturo-ureter and may assume colossal di-mension—occupying almost the entireabdominal cavity. Perhaps seventy-fiveper cent of complete obstruction occursat the proximal ureteral isthmus, which ially at the three ureteral isthmuses—proximal, middle, distal). I have ob-served the uretera
. Wisconsin medical recorder . the ureter. (Left). Obstructed kidney. I performed nephrectomywith perfect recovery. The kidney was practically destroyed and the distended uro-ureter almost occupied the entire abdominal cavity with adjacent viscera compressedto minimum dimension. companied by periodic or intermittenturo-ureter and may assume colossal di-mension—occupying almost the entireabdominal cavity. Perhaps seventy-fiveper cent of complete obstruction occursat the proximal ureteral isthmus, which ially at the three ureteral isthmuses—proximal, middle, distal). I have ob-served the ureteral calyces and pelvisdilated to the dimension of a manshead by complete obstruction at theproximal ureteral isthmus by calculus. 140 WISCONSIN MEDICAL RECORDER Second, the ureteral calculus may pro-duce ulceration of the ureteral mucosaat the point of lodgment of the calculusand ultimately the healing- results incicatricial contraction— strictural ob-struction with different grades of uro-ureter. Uro-ureter from complete. FIGURE 2 Figure 2 presents a calculus in the pel-vic ureter producing slight uro-ureter speci-men, presented to me by Prof. Weichsel-baum of Vienna. ureteral obstruction—due to calculus orureteral stricture—may become enor-mous in dimension, practically occupy-ing the abdominal cavity with the ex-ception of the viscera forced into min-imum adjacent space; however, from partial ureteral calcular obstructionvarious degrees of dimension of uro-ureter may arise. It is well known thata uro-ureter due to ureteral calculus be-comes rapidly infected and transformedinto uro-pyo-ureter. Uro-ureter due toureteral calculus is generally partial in-cluding the ureter proximal to theproximal ureteral isthmus, i. e., theureteral pelvis and calyces. The prox-imal ureteral isthmus obstructs overfifty per cent of ureteral calculus. CONCLUSIONS IN REGARD TO URO-URETERFROM CALCULUS. A ureteral calculus produces uro-ureter in rare cases. If the ureteral ob-struction be ins
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