An 11-year-old SF DSH was presented for evaluation of a radiodense object within the right kidney on survey radiographs.
An 11-year-old SF DSH was presented for evaluation of a radiodense object within the right kidney on survey radiographs.
Case Study
Ureterolith in a 11 year old FS DSH cat
DX
Ureterolith
Sonographic Differential Diagnosis
Right ureteral nephrolithiasis with obstruction approximately 1.5-2.0 cm distal to the right renal pelvis with ureteritis and right renal infarct. Slight pyelonephritis pattern in the left kidney. Small urethral sand, not clinically significant at this point.
Image Interpretation
The right kidney presented mild dystrophic changes with subnormal blood flow. Slight pyelectasia was noted. The right proximal ureter revealed 0.5 cm calculus with dilation of the ureter and peripheral hyperechoic surrounding fat. The cranial pole of the right kidney revealed an infarct. Dystrophic mineralization was also noted. Other calculi were noted in the right renal pelvis as well. The right kidney appears to be adequately viable from a structural standpoint. The left kidney was unremarkable and measured 3.41 cm. The pelvic fat in the left kidney appeared slightly inflamed and slight pyelectasia was noted. This is suggestive for pyelonephritis.
The urinary bladder revealed a pelvic urethra with small calculi at 1-2 cm distal from the cystourethral junction. These appear to be non obstructive and should pass without difficulty as this is a female.
Outcome
None
Comments
Recommend IV fluid support and recheck of the radiograph prior to surgical intervention. I do not feel that the right ureteral calculus is small enough to pass on its own. Therefore, surgical intervention or interventional radiology with stent placement or bypass may be necessary in this case. A surgeon may be able to performed a nephrotomy with milking the right ureteral calculus back to the renal pelvis; however, some secondary damage may occur. Interventional radiology is performed best for this type of procedure at Animal Medical Center with Dr. Berrent.
Clinical Differential Diagnosis
Renolith, calcification of abscess/granuloma/neoplasia
Sampling
None
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Patient Information
Patient Name :
Lucky H
Gender :
Female, Spayed
Species :
Feline
Type of Imaging : Ultrasound
Status :
Complete
Liz Wuz Here :
Yes
Code :
06_00169
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