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Medullary rim sign

Sonopath Forum

Sonopath Forum

Medullary rim sign

  • 9 year old MN DSH, history of mild weight loss over one month which since corrected 
  • Clinically normal
  • Bloods and urine normal
  • Right kidney has a medullary rim sign, and mild pelvic dilation
  • Left kidney appears to be normal
  • Why would you have these changes in one kidney and not the other please?

 

  • 9 year old MN DSH, history of mild weight loss over one month which since corrected 
  • Clinically normal
  • Bloods and urine normal
  • Right kidney has a medullary rim sign, and mild pelvic dilation
  • Left kidney appears to be normal
  • Why would you have these changes in one kidney and not the other please?

 

 

Comments

veteurope1
May 15, 2018 at 2:09 pm -

On measurement the kidneys

On measurement the kidneys are also enlarged. 

rlobetti
May 15, 2018 at 7:19 pm -

Would consider unilateral

Would consider unilateral lymphoma and would FNA the kidney.

EL
May 16, 2018 at 9:40 pm -

I agree… or interstitial

I agree… or interstitial nephrosis but I have always been concerned with LP nephritis transforming to lsa in kidneys as we know if can happen in the GI tract.

veteurope1
May 17, 2018 at 7:33 am -

Thank you. I will be

Thank you. I will be repeating the ultrasound in a few weeks and will take FNAs then. 

bhylands77
May 17, 2018 at 12:34 pm -

I would find it difficult to

I would find it difficult to understand how one kidney alone could develop interstitial  nephritis. In reality it should be bilateral from my experience.  This kidney could be a chronic  results from some degree of compression with circumcaval ureters. Over 80% of them ovccur in the rt kidney so it is a possibility. 

randyhermandvm
May 27, 2018 at 7:35 pm -

I don’t know if it is only me

I don’t know if it is only me but it appears that it may be more than just a medullary rim sign. When I look at the cine I believe I see hyperechoic change in the cortex that could very well represent lymphoma. Just my 2 cents.

EL
May 28, 2018 at 7:25 am -

Actually interstitial

Actually interstitial nephrosis is usually bilateral but what makes the size change often is concurrent dystrophy and different stages of the disease as well as concurrent calculi that can form so you gte the big kidney/little kidney syndrome… but intertitial nephrosis is the most common form of degenerative renal disease in cats as i understand it. LSA is typically bilateral but I beleieve there are transitional phases from lymphoplasmacytic to renal lsa just hasnt been proven yet unless i missed a study somewhere.. would need a series of needles in such cats over time to prove it. So in those cases I would think it to be loigical that you can get lsa in one kidney and not the other and have seen it a few times but rare and lsa is usually bilateral. Dr. Ondreka just did a talk on this regarding carcinoma being unilateral and lsa being bilateral typically.

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