Renal evaluation in a 16 week old Pit Bull X

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Renal evaluation in a 16 week old Pit Bull X

  • A 16 week old, 16.2 lb Pit Bull X Boston presented for relapse of house training (urinary accidents in the house).
  • PE was wnl.
  • Urinalysis showed USG=1.005 with no inflammatory cells seen.
  • Urine culture was positive for E. coli.
  • Bloodwork was wnl (no azotemia and SDMA wnl)
  • Radiographs showed left kidney 4X L2.   Right kidney was not visible.
  • Patient was placed on antibiotics.  Primary vet wants to rule out congenital renal disease since LK appeared large on rads and RK was not visible.
    • A 16 week old, 16.2 lb Pit Bull X Boston presented for relapse of house training (urinary accidents in the house).
    • PE was wnl.
    • Urinalysis showed USG=1.005 with no inflammatory cells seen.
    • Urine culture was positive for E. coli.
    • Bloodwork was wnl (no azotemia and SDMA wnl)
    • Radiographs showed left kidney 4X L2.   Right kidney was not visible.
    • Patient was placed on antibiotics.  Primary vet wants to rule out congenital renal disease since LK appeared large on rads and RK was not visible.
    • USG performed today is 1.013.  Since the patient is not clinically dehydrated, I am not sure about the relevance of the USG.
    • Ultrasound done today shows subjectively borderline enlarged kidneys with slightly decreased corticomedullary definition.
    • LK measures 5.98cm in length, RK measures 6.34cm in length. Ao measures 0.70cm in width.  LK/AO=8.5, RK/AO=9.0.
    • What do you all think of these kidneys?

Comments

randyhermandvm

I’m not surge I see anything

I’m not surge I see anything here unless I am using my imagination.

To me the R kidney looks smaller than the L kidney and may be smaller than measured.

I guess we can wait what others say.

EL

They look pretty unremarkable

They look pretty unremarkable to me but a little pyelectasia in the left may be from ascending e coli infection so be sure to clear the uti well even after negative culture you want negative sediment.

Electrocute

Thanks for your comments.

Thanks for your comments.  The primary vet was very worried about the USG and when she couldn’t see the right kidney on radiographs and the left kidney looked enlarged, she became very concerned about a congenital problem.  I guess I don’t get too excited about the USG if they are not azotemic, proteinuric, or clinically ill.  And since her urine was dilute, that tells me her kidneys are working. To me a UTI seems a much more likely case scenario.  

 

rlobetti

With normal SDMA, no

With normal SDMA, no proteinuria, and SG at 1.005, tubular and/or glomerular pathology unlikley. SG can fluctuate during the course of the day and associated with water and food intake. As mentioned above UTI most likley cause due to bacterial interference with the vasopressin receptors.

Electrocute

Great, thank you. 

Great, thank you. 

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