The coexistence of an obstruction at the ipsilateral ureteropelvic and ureterovesical junctions is rare, the diagnosis of which is not usually made preoperatively. In such cases, the second obstruction can be recognized by the intraoperative findings or on postoperative urologic examinations. Here, three cases of the coexistence of these two conditions are reported.
Diagnosis ; Hydronephrosis ; Ureteral Obstruction

By using antegrade pyelography which was modified from Casey and Goodwin technique, we examined nine patients in whom accurate roentgenographic diagnosis could not be made by excretory or retrograde pyelography. Diagnosis established were three cases of hydronephrosis due to ureteral calculi, three of pyonephrosis due to renal tuberculosis, one of pyonephrosis due to carcinoma of the ureter, one case of pyonephrosis due to carcinoma of the uretero-pelvic junction and one of pyonephrosis due to ureteral obstruction This is the first report of antegrade pyelography in cases of pyonephrotic renal tuberculosis. No complications occurred during or after examinations. In selected cases of hydronephrosis and pyonephrosis, antegrade pyelography is a safe and new diagnostic procedure to other accepted methods of urography.
Diagnosis ; Humans ; Hydronephrosis ; Pyonephrosis ; Tuberculosis, Renal ; Ureter ; Ureteral Calculi ; Ureteral Obstruction ; Urography*

Aortoiliac aneurysm is a rare cause of ureteral obstruction. We report a case of perianeurysmal fibrosis(PAF) associated with aortoiliac aneurysm resulting in hydronephrosis. CT and MRI findigns of PAF are presented. In patient with hydronephrosis of unknown cause, PAF should be included among the differential diagnosis. The diagnosis of PAF is easily made with CT and MRI findings.
Aneurysm ; Diagnosis ; Diagnosis, Differential ; Humans ; Hydronephrosis* ; Magnetic Resonance Imaging ; Retroperitoneal Fibrosis* ; Ureteral Obstruction

PURPOSE: This study was conducted to compared unenhanced helical computerized tomography (CT) with intravenous urography (IVU) in the evaluation of acute flank pain. MATERIALS AND MTHODS: Between April 2000 and April 2001, 59 patients with acute flank pain suspected of having urolithiasis underwent an unenhanced helical CT followed by an IVU. Two independent consultation urologic radiologists randomly assessed these patients for the presence, size and location of the calculus, ureteral dilatation and secondary sign of a ureteral obstruction. Of the 59 patients, 45 had a calculus confirmed on removal or a documented passage of a stone. The absence of a calculus was based on a clinical and radiological follow up with clinical resolution. RESULTS: CT revealed all 62 calculi from 45 patients and no calculus in 14 of the patients with a 98.4% sensitivity and a 100% specificity. IVU demonstrated 36 calculi from 35 patients and no calculus in 14 of the patients with a 57.1% sensitivity and a 100% specificity. Both CT and IVU demonstrated the secondary signs of a ureteral obstruction in 34 and 31 patients, respectively. The cost of the helical CT was 4-5 times higher than that of the IVU. CONCLUSIONS: Unenhanced helical CT is an accurate, safe, and a rapid technique for assessing acute flank pain and evaluate the choice for patients who would otherwise require a IVU for diagnosis but with a lower cost.
Calculi ; Diagnosis ; Dilatation ; Flank Pain* ; Follow-Up Studies ; Humans ; Sensitivity and Specificity ; Tomography, Spiral Computed ; Ureteral Calculi ; Ureteral Obstruction ; Urography* ; Urolithiasis

PURPOSE: This study was conducted to compared unenhanced helical computerized tomography (CT) with intravenous urography (IVU) in the evaluation of acute flank pain. MATERIALS AND MTHODS: Between April 2000 and April 2001, 59 patients with acute flank pain suspected of having urolithiasis underwent an unenhanced helical CT followed by an IVU. Two independent consultation urologic radiologists randomly assessed these patients for the presence, size and location of the calculus, ureteral dilatation and secondary sign of a ureteral obstruction. Of the 59 patients, 45 had a calculus confirmed on removal or a documented passage of a stone. The absence of a calculus was based on a clinical and radiological follow up with clinical resolution. RESULTS: CT revealed all 62 calculi from 45 patients and no calculus in 14 of the patients with a 98.4% sensitivity and a 100% specificity. IVU demonstrated 36 calculi from 35 patients and no calculus in 14 of the patients with a 57.1% sensitivity and a 100% specificity. Both CT and IVU demonstrated the secondary signs of a ureteral obstruction in 34 and 31 patients, respectively. The cost of the helical CT was 4-5 times higher than that of the IVU. CONCLUSIONS: Unenhanced helical CT is an accurate, safe, and a rapid technique for assessing acute flank pain and evaluate the choice for patients who would otherwise require a IVU for diagnosis but with a lower cost.
Calculi ; Diagnosis ; Dilatation ; Flank Pain* ; Follow-Up Studies ; Humans ; Sensitivity and Specificity ; Tomography, Spiral Computed ; Ureteral Calculi ; Ureteral Obstruction ; Urography* ; Urolithiasis

No abstract available.
Child ; Humans ; Hydronephrosis/*congenital/diagnosis/etiology ; Male ; Multicystic Dysplastic Kidney/diagnosis/*etiology ; Polyps/*complications/diagnosis/surgery ; Ureteral Diseases/complications/diagnosis/surgery ; Ureteral Obstruction/diagnosis/*etiology

Endometriosis is a rare cause of an ureteral obstruction. We report a case of intrinsic ureteral endometriosis resulting in severe hydroureteronephrosis. The diagnosis of ureteral endometriosis may be considered in women with flank pain and ureteric obstruction within true pelvis.
Diagnosis ; Endometriosis* ; Female ; Flank Pain ; Humans ; Lesser Pelvis ; Ureter* ; Ureteral Obstruction

PURPOSE: We assessed the significance of renal resistive index (RI) in the diagnosis of unilateral ureteral obstruction in children. MATERIALS AND METHODS: Duplex Doppler ultrasonography was performed in 4 children with unilateral ureteral obstruction which was proved by excretory urography, diuretic renal scan, and/ or pressure flow study. Renal RI values and RI ratios were calculated. RESULTS: They were 3 males and one female 4 to 26 months old. In all cases, mean RI values of obstructed kidneys were higher than 0.70 which was discriminatory level for obstruction in adults. In contralateral normal kidneys, RI values were widely distributed (0.61 to 0.79). Mean RI values of obstructed kidneys were larger than that of contralateral normal kidneys, and RI ratios were larger than 1.11 in all patients. CONCLUSION: We believe that the comparison of RI value between obstructed and contralateral normal kidney is valuable in the diagnosis of unilateral ureteral obstruction in children, and that RI ratio is also significantly. A prospective study with a larger number of patients is required to confirm this finding.
Adult ; Child* ; Child, Preschool ; Diagnosis ; Female ; Humans ; Kidney ; Male ; Ultrasonography, Doppler, Duplex ; Ureter* ; Ureteral Obstruction* ; Urography

Bilateral fibroepithelial polyps of the ureter are scarcely seen benign mesodermal tumor that occurs most often at the proximal ureter. Most patients present with either hematuria due to necrosis at urethral polyp of flank pain secondary to partial ureteral obstruction. The Diagnosis may be established with intravenous pyelography, retrograde pyelography, ureteroscopy and CT. Local resection is the treatment of choice. We report a case of bilateral fibroepithelial polyps of the ureter with a brief review of literatures.
Diagnosis ; Flank Pain ; Hematuria ; Humans ; Mesoderm ; Necrosis ; Polyps* ; Ureter* ; Ureteral Obstruction ; Ureteroscopy ; Urography

Disagreement exists about the accuracy of excretory urography in the staging of bladder cancer. During a 2O year period 1O8 of 537 patients with transitional cell carcinoma of the bladder had ureteral obstruction on excretory urography at the time of initial diagnosis. 93 patients (86%) had muscle invasion at staging transurethral resection or open resection. Of those patients 37 had total cystectomy, 4 had partial cystectomy, 5 had curative radiation therapy and the remainder had no further treatment. Ureteral obstruction at the time of initial diagnosis of bladder cancer usually indicates muscle invasion and/or metastases. We believe that our data support the usefulness of excretory urography as a staging tool in carcinoma of the bladder.
Carcinoma, Transitional Cell ; Cystectomy ; Diagnosis ; Humans ; Neoplasm Metastasis ; Ureteral Obstruction ; Urinary Bladder Neoplasms* ; Urinary Bladder* ; Urography*