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Lee SM, Tuan J. Surgical repositioning with omentalisation of an exposed subcutaneous ureteral bypass shunting port in a cat. JFMS Open Rep 2024; 10:20551169241257884. [PMID: 38912121 PMCID: PMC11193928 DOI: 10.1177/20551169241257884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024] Open
Abstract
Case summary A 9-year-old, spayed, female domestic shorthair cat presented with an open wound approximately 1 cm in size with exposure of the left subcutaneous ureteral bypass (SUB) shunting port that was placed approximately 11 months before presentation. Primary closures were attempted twice before local wound management with omentalisation and repositioning of the port. The exposed port was lavaged topically with a polyhexanide and propylbetaine wound irrigation solution before omentalisation and repositioning, resulting in successful retention of the implant. Five months after revision and omentalisation, there was complete coverage and healing of the wound. Relevance and novel information Adequate topical treatment, repositioning and omentalisation could be a successful treatment option for the uncommon complication of SUB shunting port extrusion secondary to resistant local infection originating from the urinary tract.
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Affiliation(s)
- Shi Min Lee
- Surgery Department, Veterinary Emergency and Specialty (VES) Hospital, Singapore
| | - Jayson Tuan
- Surgery Department, Veterinary Emergency and Specialty (VES) Hospital, Singapore
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Miyakawa H, Hsu HH, Ogawa M, Akabane R, Miyagawa Y, Takemura N. Association between serum fibroblast growth factor-23 concentrations and blood calcium levels in chronic kidney disease cats with upper urolithiasis. J Feline Med Surg 2022; 24:1245-1252. [PMID: 35133180 PMCID: PMC10812369 DOI: 10.1177/1098612x221075278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVES This study investigated whether serum fibroblast growth factor (FGF)-23 concentrations are associated with serum total calcium (tCa) and blood ionised calcium (iCa) concentrations in cats with chronic kidney disease (CKD) and upper urolithiasis. METHODS Serum samples and the medical records of cats with CKD with nephroliths, ureteroliths or both were investigated retrospectively. Cats with a serum creatinine concentration >250 μmol/l and/or a serum phosphorus concentration ⩾1.50 mmol/l were excluded. Based on cut-offs for serum tCa (2.70 mmol/l) or blood iCa (1.40 mmol/l), cats were divided into the following groups: total hypercalcaemia (H-tCa) (>2.70 mmol/l) and total normocalcaemia (N-tCa) (⩽2.70 mmol/l) groups, or ionised hypercalcaemia (H-iCa) (>1.40 mmol/l) and ionised normocalcaemia (N-iCa) (⩽1.40 mmol/l) groups, respectively. Serum FGF-23 concentrations were compared between groups and correlation analysis was performed. RESULTS Thirty-two cats with CKD and upper urolithiasis were included. Serum FGF-23 concentrations in the H-tCa group (median 573 pg/ml [range 125-3888]; n = 12) were significantly higher compared with the N-tCa group (median 245 pg/ml [range 94-627]; n = 20) (P = 0.001). Serum FGF-23 concentrations in the H-iCa group (median 1479 pg/ml [range 509-3888]; n = 6) increased significantly compared with the N-iCa group (median 245 pg/ml [range 94-637]; n = 26) (P <0.001). Serum FGF-23 concentrations significantly correlated with serum tCa (r = 0.511, P = 0.003) and blood iCa concentrations (r = 0.425, P = 0.015) but not serum creatinine (r = 0.279, P = 0.122) or phosphorus concentrations (r = 0.208, P = 0.253).Conclusions and relevance Increased serum FGF-23 concentrations were associated with hypercalcaemia independently of creatinine and phosphate status in cats with CKD and upper urolithiasis.
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Affiliation(s)
- Hirosumi Miyakawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
| | - Huai-Hsun Hsu
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
| | - Mizuki Ogawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
| | - Ryota Akabane
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
| | - Yuichi Miyagawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
| | - Naoyuki Takemura
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan
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Factors Affecting the Outcome of Medical Treatment in Cats with Obstructive Ureteral Stones Treated with Tamsulosin: 70 Cases (2018-2022). Vet Sci 2022; 9:vetsci9100568. [PMID: 36288181 PMCID: PMC9608446 DOI: 10.3390/vetsci9100568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022] Open
Abstract
Simple Summary Other than surgical approaches the treatment options for feline ureterolithiasis are limited compared to those of human medicine. After various studies on ureteral muscle relaxation drugs, tamsulosin has been used as a treatment for distal ureteral stones in human medicine. However, the available clinical veterinary data on the efficacy of drugs that relax the ureter are limited. Thus, this study aimed to investigate the factors affecting the outcome of tamsulosin treatment for feline ureterolithiasis. With tamsulosin treatment, the ureteric stone passage was confirmed in 22 out of 70 cats, with a success rate of 31.43%. Negative factors with statistical significance for stone passage in this study were high baseline creatinine levels, female sex, proximal location of stones, and large diameter stones. The results of this study suggest that tamsulosin can be considered for the treatment of ureterolithiasis in cats with small distal ureteral stones. In addition, this study serves as an important reference for determining whether medical treatment of feline ureteral obstruction using tamsulosin can be attempted. Abstract The incidence of diseases associated with feline ureteral obstruction is increasing; however, non-surgical treatment options are limited. This study evaluated the outcome of medical treatment in cats with obstructive ureteral stones treated with tamsulosin and identified potential factors predicting spontaneous stone passage. We retrospectively reviewed 70 client-owned cats treated at the Western Referral Animal Medical Center, Seoul, Korea, from 2018 to 2022. All the cats had obstructive ureterolithiasis and were treated using tamsulosin. The baseline characteristics of the cats, stone diameter and location, and stone passage outcomes were analyzed. Stone passage occurred in 22 cats; the remaining 48 cats showed no change in stone locations. Sex, creatinine, and diameter and location of stones were potential risk factors associated with successful stone passage, but age, weight, and side of the stone were not. No serious adverse events related to tamsulosin treatment were observed. This is the first study to identify the risk factors predictive of the spontaneous stone passage of cats with obstructive ureterolithiasis after tamsulosin treatment. Tamsulosin could be an alternative treatment for ureteral obstruction in male cats with smaller distal ureteral stones and low baseline serum creatinine levels. These findings could help develop guidelines for treating feline ureterolithiasis.
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Véran E, Vachon C, Byron J, Howard J, Berent A, Weisse C, Javard R, Spencer A, Gradilla S, Palm C, Culp W, Cléroux A, Dunn M. Multicenter retrospective evaluation of transmural migration of subcutaneous ureteral bypass devices within the digestive tract in catsone. J Vet Intern Med 2022; 36:1677-1685. [PMID: 35976072 PMCID: PMC9511080 DOI: 10.1111/jvim.16511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 07/18/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Placement of a subcutaneous ureteral bypass (SUB) device is an effective method to relieve all causes of ureteral obstruction in cats. Complications involving migration within the gastrointestinal tract have been seldomly described. OBJECTIVES To characterize transmural migration of SUB devices within the digestive tract in cats. ANIMALS Eleven migrated SUB catheters identified in 8 cats between 2017 and 2021. METHODS Retrospective review of medical records of cats with a SUB device in which migration into the gastrointestinal tract was identified. RESULTS The median time from SUB device placement to implant migration was 928 days (201-2298 days). Seven cats had obstruction of the SUB device and a positive urine culture at diagnosis. The migration was identified by ultrasound in 6/11, pre-operative contrast radiography in 2/2, and only at time of surgery in 3 SUB devices. All cats underwent surgical correction. Four nephrostomy and 7 cystotomy catheters migrated. Migration occurred into the duodenum (3/11), jejunum (7/11), and colon (1/11). SUB devices were removed in 7 cats and replaced in 2 cats, with 1 cat diagnosed with 2 migration events. Gastrointestinal resection and anastomosis were performed in 7/8 cats and an enterotomy in 2 cats. Six cats survived to discharge. The median follow-up time after migration diagnosis was 365 days (range, 0-1114 days) and 2 cats are still alive. CONCLUSIONS AND CLINICAL IMPORTANCE Although a rare complication, migration of SUB device should be considered in cats with SUB device obstruction and a positive urine culture.
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Affiliation(s)
- Emilie Véran
- Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, Montreal, Québec, Canada
| | - Catherine Vachon
- Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, Montreal, Québec, Canada
| | - Julie Byron
- Department of Veterinary Clinical Sciences, Ohio State University, Columbus, Ohio, USA
| | - James Howard
- Department of Veterinary Clinical Sciences, Ohio State University, Columbus, Ohio, USA
| | - Allyson Berent
- Service of Interventional Radiology and Interventional Endoscopy, Animal Medical Center, New York City, New York, USA
| | - Chick Weisse
- Service of Interventional Radiology and Interventional Endoscopy, Animal Medical Center, New York City, New York, USA
| | - Romain Javard
- Département de médecine interne, Centre Vétérinaire DMV, Montréal, Québec, Canada
| | - Ashley Spencer
- Department of Veterinary Clinical Sciences, North Carolina State Veterinary Medicine, Raleigh, North Carolina, USA
| | - Sarah Gradilla
- Department of Emergency and Critical Care, Cornell University Veterinary Specialists, Stamford, Connecticut, USA
| | - Carrie Palm
- Surgical and Radiological Sciences, UC Davis Veterinary Medicine, Davis, California, USA
| | - William Culp
- Surgical and Radiological Sciences, UC Davis Veterinary Medicine, Davis, California, USA
| | - Andréanne Cléroux
- Department of Clinical Sciences & Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Marilyn Dunn
- Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, Montreal, Québec, Canada
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Kennedy AJ, White JD. Feline ureteral obstruction: a case-control study of risk factors (2016-2019). J Feline Med Surg 2022; 24:298-303. [PMID: 34076537 PMCID: PMC10812244 DOI: 10.1177/1098612x211017461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Ureteral obstruction (UO) in cats causes acute kidney injury and typically requires surgical intervention. Information is required about potentially modifiable risk factors to inform prevention strategies. METHODS A case-control study was performed to assess risk factors associated with feline UO. Cases were defined as cats with either of the following: (1) ureteral obstruction (ureteroliths: 13/18; unknown: 5/18) confirmed with pyelography; or (2) a creatinine concentration >140 µmol/l with both UO (ureteroliths: 6/10; blood clots: 3/10; pyonephrosis: 1/10) and pyelectasia ⩾5 mm on abdominal ultra sonography. Controls were defined as cats without evidence of UO on history, physical examination and abdominal ultrasound. Age, sex, breed (domestic shorthair/longhair), diet (predominantly dry, mixed or predominantly moist food), housing (indoors or mixed) and plasma total calcium were evaluated for their association with UO using multivariable logistic regression. A receiver operator characteristic (ROC) curve was created to evaluate the predictive ability of the final model. RESULTS In total, 168 cats (28 cases, 140 controls) were included. Age, sex, breed, housing and total calcium were not significantly associated with UO; however, diet was. Compared with cats eating a predominantly moist food diet, cats fed a predominantly dry food diet were 15.9 times more likely to develop a UO (95% confidence interval 2.9-295; P = 0.009). There was no difference in the association between diet and UO in cats fed a mixed diet vs cats fed a predominantly moist food diet (P = 0.25). The area under the ROC curve was 72%. CONCLUSIONS AND RELEVANCE Changes in diet formulation could provide a simple and economical method to reduce the risk of UO.
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Kwon M, Kim S, Lee K, Yoon H. Case Report: Imaging Features and Successful Management of Ureteral Stenosis in a Kitten With Bilateral Atypical Papillary Transitional Mucosal Hyperplasia. Front Vet Sci 2022; 8:796638. [PMID: 35187140 PMCID: PMC8850297 DOI: 10.3389/fvets.2021.796638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 12/13/2021] [Indexed: 11/30/2022] Open
Abstract
A 3-month-old cat weighing 2.62 kg was brought to the VIP Animal Medical Center with vomiting, diarrhea, anorexia, and depression. Laboratory findings confirmed azotemia with elevated blood urea nitrogen (BUN) (168.9 mg/dl) and creatinine (5.9 mg/dl) and symmetric dimethylarginine (SDMA) (86 μg/dl). Abdominal radiography revealed bilateral renomegaly. Ultrasonography revealed bilateral hydronephrosis and left partial and right complete ureteral obstructions with bilateral focal irregular and circumferential thickenings at ureters. Reduction of bilateral renal function was confirmed through excretory urography on computed tomography. The cat underwent subcutaneous ureteral bypass surgery on the left kidney, right nephrectomy, and bilateral ureterectomy. Histopathology of bilateral ureteral irregular and circumferential thickening revealed bilateral atypical papillary transitional mucosal hyperplasia. Three days after surgery, the left hydronephrosis resolved, and azotemia was almost resolved. This is the first report of successful management of ureteral stenosis with congenital papillary transitional mucosal hyperplasia in a kitten using multimodality imaging.
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Affiliation(s)
- Minji Kwon
- College of Veterinary Medicine, Jeonbuk National University, Jeonbuk, South Korea
| | - Sungsoo Kim
- VIP Animal Medical Center, Seoul, South Korea
| | - Kichang Lee
- College of Veterinary Medicine, Jeonbuk National University, Jeonbuk, South Korea
| | - Hakyoung Yoon
- College of Veterinary Medicine, Jeonbuk National University, Jeonbuk, South Korea
- *Correspondence: Hakyoung Yoon
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Lemieux C, Vachon C, Beauchamp G, Dunn ME. Minimal renal pelvis dilation in cats diagnosed with benign ureteral obstruction by antegrade pyelography: a retrospective study of 82 cases (2012-2018). J Feline Med Surg 2021; 23:892-899. [PMID: 33499710 PMCID: PMC11197118 DOI: 10.1177/1098612x20983980] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES The aim of the study was to describe renal pelvis (RP) and ureteral ultrasonographic measurements in a population of cats with confirmed benign ureteral obstruction (UO) by antegrade pyelography. The secondary objective was to further describe clinical findings associated with minimally dilated obstructed kidneys in an attempt to better understand its occurrence. METHODS Retrospective case series of cats diagnosed with benign UO were confirmed by antegrade pyelography. Medical records were reviewed and signalment, diagnostic imaging results, serum creatinine (SCr) concentration and urine culture results were recorded. Each obstructed kidney was categorized into two groups: group 1 included all RP measurements ⩽4 mm and group 2 included all RP measurements >4 mm. RESULTS A total of 82 cats with 114 obstructed ureters met the inclusion criteria. Fifty (61%) cats had a unilateral UO and 32 (39%) had a bilateral UO. Thirty (26%) kidneys were included in group 1 while 84 (74%) were included in group 2. Nine (8%) kidneys had an RP dilation ⩽2 mm. Median RP and ureteral diameters were 6.6 mm (range 1.1-37.0 mm) and 3.2 mm (range 0.0-11.0 mm), respectively. RP size correlated positively with ureteral diameter in the study population (P <0.0001), but not in group 1 when analyzed separately (P = 0.47). UO was secondary to stones in 80 (70%) ureters. Seventeen (21%) cats had a positive urine culture. At admission, 79 (96%) cats were azotemic with a median preoperative SCr concentration of 444 µmol/l (range 108-1326 μmol/l). The mean (95% confidence interval [CI]) preoperative SCr concentration was significantly higher in group 1 (762 µmol/l [498-1165 μmol/l]) than in group 2 (409 µmol/l [333-502 μmol/l]). RP size in the two groups correlated negatively with preoperative SCr concentration (P = 0.0002). CONCLUSIONS AND RELEVANCE Feline UO may be associated with minimal RP dilation and the severity of RP and ureteral dilation can be highly variable. Absence of significant RP dilation does not rule out UO in cats.
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Affiliation(s)
- Charles Lemieux
- Department of Clinical Sciences, Centre Hospitalier Universitaire Vétérinaire (CHUV), Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Catherine Vachon
- Department of Clinical Sciences, Centre Hospitalier Universitaire Vétérinaire (CHUV), Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Guy Beauchamp
- Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Marilyn E Dunn
- Department of Clinical Sciences, Centre Hospitalier Universitaire Vétérinaire (CHUV), Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
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Testault I, Gatel L, Vanel M. Comparison of nonenhanced computed tomography and ultrasonography for detection of ureteral calculi in cats: A prospective study. J Vet Intern Med 2021; 35:2241-2248. [PMID: 34258789 PMCID: PMC8478021 DOI: 10.1111/jvim.16210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/10/2021] [Accepted: 06/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Radiographs and ultrasound (US) are the primary imaging modalities used to assess ureteral calculi in cats. Reports describing the use of nonenhanced computed tomography (CT) are scarce. HYPOTHESIS/OBJECTIVES To compare US and nonenhanced CT for detection, number and localization of ureteral calculi in cats. ANIMALS Fifty-one cats with at least 1 ureteral calculus, and 101 ureters. METHODS Prospective case series. All cats underwent an US followed by a nonenhanced CT. Cats were included in the study if at least 1 ureteral calculus was diagnosed on either modality. Number of calculi and their localization (proximal, middle, and distal) were recorded on both modalities. Pelvic dilatation and maximal ureteral diameter were recorded with US. RESULTS More calculi were detected by nonenhanced CT (126) compared to US (90), regardless of localization (P < .001). More ureters were affected on nonenhanced CT (70) compared to US (57; P < .001). The number of calculi detected was significantly different between US and nonenhanced CT in the proximal (P = .02) and distal ureteral region (P < .001). Bilateral calculi were more frequent with nonenhanced CT (19 cats) compared to US (9 cats; P < .001). A pelvic size superior to 5 mm and a maximal ureteral diameter value superior to 3 mm were always associated with ureteral calculi. CONCLUSIONS AND CLINICAL IMPORTANCE Computed tomography is an emerging imaging modality in cats with a suspected ureteral obstruction. Combination of CT and US can be beneficial for case management.
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Affiliation(s)
| | - Laure Gatel
- Centre Hospitalier Vétérinaire Pommery, Reims, France
| | - Maïa Vanel
- Centre Hospitalier Vétérinaire Atlantia, Nantes, France.,Anicura TRIOVet, Rennes, France
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Cockburn E, Battersby IA, Doyle RS. Renal pelvic rupture, intrapelvic haematoma and retroperitoneal haemorrhage associated with obstructive ureterolithiasis in a cat. J Small Anim Pract 2020; 62:599-603. [PMID: 32909260 DOI: 10.1111/jsap.13196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 04/03/2020] [Accepted: 06/01/2020] [Indexed: 10/23/2022]
Abstract
A neutered female cat presented with a 9-day history of hyporexia and depression. The referring veterinarian had identified moderate non-regenerative anaemia, haematuria and suspected unilateral obstructive ureterolithiasis. Subsequent ultrasonography revealed moderate distension of the left renal pelvis with echogenic material, ureteral distension and ureterolithiasis. A partial ureteral obstruction was suspected. After 4 days of medical management, there was further distension of the renal pelvis with well-delineated echogenic material and an accumulation of perinephric fluid. A left nephroureterectomy was performed. Renal pelvic rupture with intrapelvic haematoma and retroperitoneal haemorrhage was confirmed by histopathology. Eighteen months following surgery, the cat remained clinically well with normal renal values.
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Affiliation(s)
- E Cockburn
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Road, Higham Gobion, Hitchin, Hertfordshire, SG5 3HR, UK
| | - I A Battersby
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Road, Higham Gobion, Hitchin, Hertfordshire, SG5 3HR, UK
| | - R S Doyle
- Davies Veterinary Specialists, Manor Farm Business Park, Higham Road, Higham Gobion, Hitchin, Hertfordshire, SG5 3HR, UK
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Ioannidi OM, Papazoglou LG, Psalla D, Papadopoulou P, Papazoglou D, Tsampa N, Mylonakis ME. Congenital Unilateral Ureteral Stenosis With Hydronephrosis in a Kitten. Top Companion Anim Med 2019; 36:22-24. [PMID: 31472725 DOI: 10.1053/j.tcam.2019.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 11/11/2022]
Abstract
A 4-month-old, intact male, domestic longhair cat was admitted with a 2-month history of abdominal distention. Physical examination revealed a mild inspiratory distress and a large palpable intraabdominal mass, in an otherwise bright and alert cat. Abdominal ultrasonography revealed a large hypoechoic cystic structure compatible with hydronephrosis or a renal cyst. On exploratory celiotomy, hydronephrosis of the right kidney was documented and ureteronephrectomy was performed. Histopathology of the excised tissues revealed severe stenosis in the proximal ureteral lumen without evidence of obstructive material, a normal ureteral epithelium and severe atrophy of the renal cortex and medulla, supporting the diagnosis of congenital unilateral ureteral stenosis. The cat recovered uneventfully and 8 months later was in excellent clinical condition. Congenital ureteral stenosis with secondary hydronephrosis may occur rarely in cats and should be included in the differential diagnosis of progressive abdominal distention in young cats.
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Affiliation(s)
- Olympia M Ioannidi
- Faculty of Health Sciences, Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Lysimachos G Papazoglou
- Faculty of Health Sciences, Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitra Psalla
- Faculty of Health Sciences, Laboratory of Pathology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Paraskevi Papadopoulou
- Faculty of Health Sciences, Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Nefeli Tsampa
- Faculty of Health Sciences, Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Mathios E Mylonakis
- Faculty of Health Sciences, Companion Animal Clinic, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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