Diverticula of the male posterior urethra are uncommon and usually acquired. We report a case of a large posterior urethral diverticulum that developed after radical retropubic prostatectomy. The etiological factors of male diverticula are discussed.
Two cases of renal cell carcinoma associated with polycystic disease of the kidney are presented. The literature is reviewed and the angiographic findings are discussed. These cases suggest that angiography is necessary to make the diagnosis of renal tumors associated with renal polycystic disease.
Extracorporeal shock wave lithotripsy was used for the treatment of 1,252 kidneys and ureters with calculi during a 10-month period at the authors' medical center. Before lithotripsy was performed, excretory urography, radiography, renography, computed tomography, and ultrasound studies were done, when necessary, to locate the calculi. Nine calculi in five kidneys could not be fragmented with lithotripsy. Of 895 patients with calculi less than 2.5 cm in diameter, only 13 (1.5%) required interventional procedures to clear the calculi, whereas of 161 patients with calculi greater than or equal to 2.5 cm, 36 (22.4%) required nephrostomies. A column of calculous debris in the mid and distal portions of the ureter (steinstrasse) was seen in 171 instances (13.6%) after lithotripsy; 62% required interventions. The most common intervention required for successful lithotripsy was retrograde ureteral catheterization. Evaluation and treatment of patients with urolithiasis were largely dependent on radiography and excretory urography.
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