1.The Coexistence of Obstruction at the Ipsilateral Ureteropelvic and Ueterovesical Junctions.
Woo Sup SUNG ; Hyun Tae KIM ; Ki Ho KIM ; Eun Sang YOO ; Sung Kwang CHUNG
Korean Journal of Urology 2005;46(9):1004-1007
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
2.Antegrade Pyelography.
Kun Weon CHOO ; Hyo Joong MOON ; Key Ha PARK ; Hak Song LEE
Korean Journal of Urology 1960;1(1):49-53
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*
3.Comparision of Unenhanced Helical Computerized Tomography and Intravenous Urography in the Radiologic Evaluation of Acute Flank Pain.
Joo Hwan LEE ; Seung Tae KIM ; Chang Myun PARK ; Seong Soo JEON ; Soo Eung CHAI ; Jeong Ah RYU ; Bo Hyun KIM
Korean Journal of Urology 2002;43(4):271-276
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
4.Comparision of Unenhanced Helical Computerized Tomography and Intravenous Urography in the Radiologic Evaluation of Acute Flank Pain.
Joo Hwan LEE ; Seung Tae KIM ; Chang Myun PARK ; Seong Soo JEON ; Soo Eung CHAI ; Jeong Ah RYU ; Bo Hyun KIM
Korean Journal of Urology 2002;43(4):271-276
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
5.Perianeurysmal Retroperitoneal Fibrosis Causing Obstructive Hydronephrosis: Case Report.
Heoung Keun KANG ; Jeong Jin SEO ; Jae Kyu KIM ; Hyon De CHUNG ; Woong YOON ; Woorig Jae MOON
Journal of the Korean Radiological Society 1994;31(3):541-544
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
6.A Rare Cause of Ureteropelvic Junction Obstruction.
Korean Journal of Urology 2014;55(10):687-689
7.Intrinsic Endometriosis of Ureter: A Case Report.
Myung Sun HONG ; Ho Chul KIM ; Ku Sup YUN ; Chul Soon CHOI ; Sang Hoon BAE ; Sung Yong KIM ; Hyung Sik SHIN
Journal of the Korean Radiological Society 1995;33(1):109-112
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
8.Significance of Renal Resistive Index in Children with Unilateral Ureteral Obstruction.
Bong Seok CHOI ; Ky Hyun CHUNG
Korean Journal of Urology 1997;38(6):595-599
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
9.Renal Vein Doppler Sonography in Rabbits with Acute Ureteral Obstruction: Usefulness of Impedance Index of Renal Vein.
Kyung Myung SOHN ; Su Kyo CHUNG ; Sung Yong LEE
Journal of the Korean Radiological Society 2004;50(5):369-374
PURPOSE: To evaluate the usefulness of the impedance index of the renal vein for the diagnosis of acute obstructive uropathy in rabbits. MATERIALS AND METHODS: Ligation of the left ureter was done in 12 rabbits. Doppler sonography of the interlobar veins in both kidneys was checked before and 30 minutes, 1, 3, 6, 9 and 24 hours after ureteral ligation. The venous impedance index [(peak flow signal-least flow signal)/peak flow signal]was compared between the obstructed and non-obstructed kidneys for all periods. The change in the impedance index after ureteral ligation was also compared between the obstructed and non-obstructed kidneys. RESULTS: A decrease in the impedance index of the intrarenal vein was observed starting from 30 mins after ureteral ligation, and the index remained low up to 24 hours after ureteral ligation. The obstructed kidneys had a significantly lower impedance index than the contralateral kidneys for all six of the postligation measurements (p< 0.05). There were significant differences in the change of impedance index after ureteral ligation between the obstructed and non-obstructed kidneys (p< 0.05). CONCLUSION: The impedance index of the intrarenal vein was significantly decreased in the obstructed kidneys. The measurement of the impedance index of the intrarenal vein using Doppler sonography could provide a useful method of diagnosing obstructive uropathy.
Diagnosis
;
Electric Impedance*
;
Kidney
;
Ligation
;
Rabbits*
;
Renal Veins*
;
Ureter*
;
Ureteral Obstruction*
;
Veins
10.Retroperitoneal Fibrosis: Spectrum of Imaging Findings.
Jong Seok LEE ; Chang Kyu SEONG ; Jung Suk SIM ; Sang June SHIN ; Seung Hyup KIM
Journal of the Korean Radiological Society 1999;41(6):1177-1182
Retroperitoneal fibrosis is a fibroproliferative process involving the retroperitoneum. It may be idiopathic or can be caused by methysergide ingestion, perianeurysmal inflammation, a leaking aneurysm, urinoma or irradiation. The symptoms and signs of retroperitoneal fibrosis are variable, and for diagnosis, imaging is therefore essential. The typical imaging finding is a fibrotic lesion in front of the lower vertebrae with ureteral obstruction. Atypical lesions, however, may occur in other parts of the retroperitoneum. The aim of this report is to describe the clinical features and various imaging findings of etroperitoneal fibrosis.
Aneurysm
;
Diagnosis
;
Eating
;
Fibrosis
;
Inflammation
;
Methysergide
;
Retroperitoneal Fibrosis*
;
Spine
;
Ureteral Obstruction
;
Urinoma