Perirenal pseudocysts in 26 cats

Beck, J. A.; Bellenger, C. R.; Lamb, W. A.; Churcher, R. K.; Hunt, Geraldine B; Nicoll, R. G.; Malík, Richard

doi:10.1111/j.1751-0813.2000.tb10585.x

Cited by 41 publications

(89 citation statements)

References 5 publications

(1 reference statement)

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“…The other part of the right kidney as well as left one showed no prominent lesions. The present case had similar gross lesions to feline perirenal cyst reported, however the continuity of the cyst to the renal pelvis, epithelial lining and the presence of abundant smooth muscles in the cyst wall differed from findings in the previous reports [3][4][5][6]. Congenital ureteral diverticulum can become very large cyst arising from the distal ureter, midureter, and ureteropelvic junction [7].…”

contrasting

confidence: 40%

“…The former that may occur in association with inherited, developmental, or acquired diseases is recognized in the renal parenchyma and are defined as a fluid-filled sac lined by an epithelium. On the other hand, the latter has been used to describe renomegaly caused by accumulation of fluid between renal parenchyma and the surrounding capsule so that it had no epithelial lining and the cause of the disorder is not known and the morphogenesis has not been yet fully investigated [1,3,5]. The words of capsulogenic renal cyst, capsular cyst and pararenal pseudocyst, capsular hydronephrosis or perirenal cyst have been used as a synonym of perirenal pseudocyst [5].…”

mentioning

confidence: 99%

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Perirenal Pyelocaliceal Diverticulum in an Infant Cat

Tsujimoto

Okuda²,

Okuda³

et al. 2005

The Journal of Veterinary Medical Science

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ABSTRACT. A 3-month-old female tortoise-shell cat showing azotemia died with a marked swollen abdomen. Necropsy revealed a huge perirenal cyst (8.5 × 6.0 × 4.5 cm) on the ventral aspect of the right kidney. The cyst was filled with the pellucid yellow fluid with a smell of urine. The lumen was connected with irregularly dilated renal pelvis by a narrow channel passing through the renal parenchyma. The cyst was lined by epithelial cells and its wall was consisted of collagen fibers and smooth muscle cells as that of the renal pelvis and ureter. Renal parenchyma adjacent to the channel showed interstitial infiltration of the lymphoid cells. The cyst was a diverticulum of the renal pelvis due to an impaired development. KEY WORDS: feline, perirenal cyst, pyelocaliceal diverticulum.J. Vet. Med. Sci. 67(3): 329-331, 2005 Cystic diseases of the kidney in cats are divided into two types as a renal cyst and a perirenal pseudocyst [5]. The former that may occur in association with inherited, developmental, or acquired diseases is recognized in the renal parenchyma and are defined as a fluid-filled sac lined by an epithelium. On the other hand, the latter has been used to describe renomegaly caused by accumulation of fluid between renal parenchyma and the surrounding capsule so that it had no epithelial lining and the cause of the disorder is not known and the morphogenesis has not been yet fully investigated [1,3,5]. The words of capsulogenic renal cyst, capsular cyst and pararenal pseudocyst, capsular hydronephrosis or perirenal cyst have been used as a synonym of perirenal pseudocyst [5]. In the present report, we describe the perirenal cyst which has not been described before.A 3-month-old female tortoise-shell cat, weighing about 920 g showed a marked swollen abdomen, anorexia and dyschezia for the past month. The cause of abdominal enlargement was identified as accumulation of fluid. To lower intra-abdominal pressure, a total of 800 ml of the fluid was removed by aspiration with a syringe four times over a period of 3 weeks, however the abdominal turgidity showed no signs of recovery. A blood test that was performed 5 days before death showed an elevation in values of blood urea nitrogen (BUN; >140 mg/dl) and creatinine (Cr; 7.1 mg/dl). The cat died 40 days after the first admission.Necropsy was performed two hours after death and confirmed asites (about 15 ml) which was pellucid yellow with a smell of urine, formation of a huge fluid-filled cyst (8.5 × 6.0 × 4.5 cm, weighing about 190 g) on the ventral aspect of the right kidney (Fig. 1), a slightly swollen left kidney and hydrothorax. Accumulated fluid in the cyst of the right kidney was similar in content to that of the ascites (BUN; 43.2 mg/dl, Cr; 2.5 mg/dl). The free wall of the cyst was thin and the inside lining was smooth and white. On the other hand, the visceral cyst wall could not be separated from the right kidney. The lumen of the cyst connected with irregularly dilated renal pelvis through a narrow channel (Figs. 2 and 3). The ventral aspect of th...

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contrasting

confidence: 40%

mentioning

confidence: 99%

Perirenal Pyelocaliceal Diverticulum in an Infant Cat

Tsujimoto

Okuda²,

Okuda³

et al. 2005

The Journal of Veterinary Medical Science

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“…A moléstia policística pode ser unilateral, e a remoção do rim afetado pode ser aconselhada em decorrência de sua predisposição a infecção (Christie e Bjorling, 2007). Beck et al (2000) e Pigatto et al (2011) consideram que dor persistente, infecção, hematúria recorrente e compressão do sistema coletor renal ou de órgãos adjacentes são indicações para o tratamento de cistos renais simples ou no contexto de doença renal policística.…”

Section: Introductionunclassified

Ressecção de cisto e abscesso renais por laparoscopia em um cão

Filho

Brun

Dalmolin

et al. 2013

Arq. Bras. Med. Vet. Zootec.

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RESUMOCistos renais podem formar-se em qualquer parte do néfron e dos ductos coletores. Alguns são hereditários, originando-se durante a organogênese, e outros se desenvolvem no tecido renal normal, depois que os rins estão completamente formados. No presente relato, descreve-se a ressecção de cisto e abscesso renais, por cirurgia laparoscópica em um cão. Para o acesso, foram utilizados três portais, dois de 10mm de diâmetro e um de 5mm, dispostos na parede abdominal lateral direita e, num segundo momento, na parede abdominal lateral esquerda. Conclui-se, portanto, que a técnica laparoscópica com três portais permite a realização de ressecção de cisto e abscesso renais em cães, sem a ocorrência de recidivas em curto prazo. Doenças perirrenais em pequenos animais são relativamente incomuns. Entre elas, os pseudocistos perirrenais são caracterizados como acúmulo de variadas quantidades de fluido, dentro de sacos fibrosos e em volta de um ou ambos os rins, estando frequentemente fixos ao hilo ou aos polos renais. O termo pseudocisto é utilizado para essa afecção pelo fato de ela não possuir camada epitelial, enquanto os cistos renais a possuem. Cistos renais são de origem Recebido em 9 de agosto de 2012 Aceito em 8 de maio de 2013 *Autor para correspondência (corresponding author) E-mail: mauriciovelosobrun@hotmail.com tubular, podendo envolver a cápsula glomerular ou qualquer porção dos túbulos renais. Já os pseudocistos ocorrem externamente ao parênquima renal, entre o parênquima e a cápsula renal, ou entre o parênquima renal e o retroperitônio (Ferreira, 2008).Cistos podem formar-se em qualquer parte do néfron e do sistema dos ductos coletores. Algumas lesões císticas são hereditárias, originando-se durante a organogênese. Outros cistos desenvolvem-se no tecido renal normal, depois que os rins estão completamente

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“…Although no sex predilection was detected in a series of cats with PNPs (Ochoa et al, 1999), it seems that, like in our cat, they most often occur in older, male cats (Abdinoor, 1980;Beck et al, 2000;Essman et al, 2000;Hill and Odesnik, 2000;Dennis and McConnell, 2007). The reason why male cats most often develop PNPs remains unclear.…”

mentioning

confidence: 98%

“…It is most commonly attached to the renal hilus or to the poles of kidneys (Ochoa et al, 1999;Movat et al, 2009;Chew et al, 2011b). PNPs may be unilateral or bilateral at an equal proportion (Beck et al, 2000) or at a 3:2 ratio (Ochoa et al, 1999;Chew et al, 2011b).…”

mentioning

confidence: 99%

Perinephric pseudocyst in a cat: management by ultrasound-guided drainage

Adαmama-Moraitou

Pardali

Vafiadis

et al. 2018

J Hellenic Vet Med Soc

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A 15-year-old castrated DSH cat was presented with a sudden onset of abdominal distension of 10 days duration. Polyuria/polydipsia, sporadic vomiting and weight loss were also mentioned by the owners. Distension of the cranial abdomen was observed on admission, and two smooth masses were palpated in the abdomen. Mild anemia and azotemia were detected on hematological and biochemical testing. Plain lateral and dorsoventral radiographic views of the abdomen were compatible with renomegaly. Ultrasonography revealed the presence of fluid surrounding both kidneys, and analysis of the accumulated fluid confirmed the diagnosis of bilateral subcapsular transudative perinephric (perirenal) pseudocysts. The precise etiology of pseudocysts formation in our cat could not be identified. Emphasis is placed on their development, due to the coexisting chronic kidney disease, but also to other causes. Although surgical or laparoscopical resection of the cyst wall is generally recommended, owners of this cat elected periodical ultrasound-guided drainage of the perinephric fluid. This might be a reasonable decision, due to its advanced age and the macroconcurrent moderate chronic kidney disease. The long term outcome was favorable, with permanent remission of the perinephric pseudocysts after only three evacuations. The cat died, approximately 20 months after the initial presentation, due to deterioration of chronic kidney disease, and perinephric pseudocysts could not be detected clinically at that time.

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Perirenal pseudocysts in 26 cats

Cited by 41 publications

References 5 publications

Perirenal Pyelocaliceal Diverticulum in an Infant Cat

Perirenal Pyelocaliceal Diverticulum in an Infant Cat

Ressecção de cisto e abscesso renais por laparoscopia em um cão

Perinephric pseudocyst in a cat: management by ultrasound-guided drainage

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