Type I and II circumcaval ureter in children: Experience in three cases

Başok, Erem Kaan; Yıldırım, Asıf; Tokuç, Reşit

doi:10.1007/s12325-008-0040-z

Cited by 8 publications

(11 citation statements)

References 10 publications

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“…Similarly, people with RU remain asymptomatic, and the clinical signs are usually due to hydronephrosis (Basok et al, 2008), caused by the compression of the ureter, against the anomalous vessels (Bhattacharjee et al, 2016) along with the compression caused by the psoas muscle, and spinal column (Salonia et al, 2006;Basok et al, 2008;Casteleyn et al, 2015). Human patients present unspecific symptomatology, such as abdominal and flank pain, urinary tract infection, fever, and hematuria, usually associated with ureteric obstruction (Salonia et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Division of the dilated renal pelvis with transposition and anastomosis, ureterotomy or resection of the stenotic segment of ureter compressed by the anomalous vessel with anastomosis of a double-J stent, and ligation or transection of the CVC with or without anastomosis are also procedures indicated in case of RU (Salonia et al, 2006;Bhattacharjee et al, 2016). In symptomatic type II, the ureteropelvic junction can be excised and anastomosed to the renal pelvis after been spatulated (Basok et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…Retrocaval ureter (RU), also known as circumcaval ureter, is a rare congenital anomaly of the caudal vena cava (CVC), in which the ureter is abnormally displaced dorsal to the CVC and between the aorta and dorsal muscles (Salonia et al, 2006;Basok et al, 2008;Bélanger et al, 2014). The normal ureter leaves the renal pelvis dorsolateral to the renal http://dx.doi.org/10.1590/1678-4162-10252 V.G.P.…”

Section: Introduction mentioning

confidence: 99%

“…Two types of RU are described in humanstype I and II. The most common is type I, where an acute medial deviation of the ureter causes a "Fish-hook" deformity leading often to symptomatic patients; and the rare, generally asymptomatic type II, when the ureter passes around the CVC at the ureteropelvic junction (Basok et al 2008;Salonia et al, 2006). This case report aims to describe a rare case of feline type II RU causing severe hydronephrosis, without any other obstructive cause and successfully treated with nephroureterectomy.…”

Section: Introduction mentioning

confidence: 99%

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Type II retrocaval ureter causing hydronephrosis in a cat: case report

Albernaz

Tasqueti

Meyer

et al. 2019

Arq. Bras. Med. Vet. Zootec.

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Retrocaval ureter (RU) is an abnormal embryonic development of the caudal vena cava (CVC) that leads the ureter to be entrapped dorsal to the CVC. In most cases there is no clinical impact; however, it can cause hydronephrosis. We report a rare case of type II symptomatic retrocaval ureter in a feline treated with nephroureterectomy. A 4-year-old, intact male, mixed breed cat was submitted to abdominal ultrasound and severe right hydronephrosis was diagnosed, with no signs of obstruction. We performed an exploratory celiotomy, in which a displacement of the right ureter dorsal to the CVC was observed. The animal was treated with ureteronephrectomy and recovered well. No intraluminal cause was found, and a urethral catheter could be easily inserted across the ureter length. The real clinical relevance of the RU is unknown, since it is a common find in post-mortem examination without kidney impact and, when significant, is often associated to other causes of ureteral obstructions, such as calculi and strictures. Additionally, in humans, type II RU seldom develops obstruction and hydronephrosis. In our case, due to absence of other causes of obstruction, probably mechanical compression of the CVC against the psoas muscle caused the hydronephrosis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%

See 2 more Smart Citations

Type II retrocaval ureter causing hydronephrosis in a cat: case report

Albernaz

Tasqueti

Meyer

et al. 2019

Arq. Bras. Med. Vet. Zootec.

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“…Considering that a retrocaval ureter directly causes a serious left ureteral obstruction (17), more studies on this type of IVC dysplasia are available. In addition, other types of IVC dysplasia pose important clinical significance.…”

Section: Discussionmentioning

confidence: 99%

Computed tomography manifestations of common inferior vena cava dysplasia and its clinical significance

Qian

Ming-feng

Zuo

et al. 2012

Experimental and Therapeutic Medicine

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This study aimed to review and analyse the computed tomography (CT) imaging results of frequently encountered developmental anomalies of the inferior vena cava (IVC). The underlying clinical significance was evaluated with reference to the relevant literature. CT images of patients who received abdominal or thoracic scanning between July 2009 and September 2011 were reviewed. Developmental anomalies observed in the IVC were identified and categorised. Images of the cases with typical anomalies were presented and their developmental mechanism, as well as clinical significance, was discussed. The most frequently encountered IVC developmental anomalies include the left vena cava, double vena cava, azygos continuation of the IVC, left circumaortic renal vein, left retroaortic renal vein and retrocaval ureter. The embryogenesis of the IVC is a complex process that results in various congenital anomalies. The developmental anomalies of the IVC are distinguished using a CT scan and have significant implications on clinical perspective.

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Computed tomographic appearance of circumcaval and circumuterine ureter in a cat

Jirasakul

Thammasiri

Darawiroj

et al. 2020

Veterinary Medicine & Sci

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Background Circumcaval ureter is a rare congenital anomaly resulting from the persistence of embryonic venous system. This anomaly is characterized by running of affected ureter around caudal vena cava (CVC). Case presentation In this report, circumcaval ureter was found in a 2‐year‐old female cat attending as normal sample group in another research. This cat passed all health checkup protocols before computed tomography (CT) was performed. Conclusion The contrast‐enhanced computed tomographic (cCT) images clearly revealed the dislocation of the right ureter that course around CVC and uterine body. This is the first report of feline circumcaval concurrent with circumuterine ureter detected by cCT.

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Type I and II circumcaval ureter in children: Experience in three cases

Cited by 8 publications

References 10 publications

Type II retrocaval ureter causing hydronephrosis in a cat: case report

Type II retrocaval ureter causing hydronephrosis in a cat: case report

Computed tomography manifestations of common inferior vena cava dysplasia and its clinical significance

Computed tomographic appearance of circumcaval and circumuterine ureter in a cat

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