These clips are from a 15 year old, MN cat with rising BUN/Creatinine, hematuria and weight loss. The right kidney was similar, but smaller due to a dorsal section of cortical collapse. The bladder was normal and no visible ureteral distention.
The mineralized opacity in the cranial pole of this kidney… I notice it is surrounded a hypoechoic “ring”. Does that indicate it is an active/potentially moving renolith? Or can that be seen with chronic renoliths as well?
Thank you! – Karen
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The pyelectasia has debris in it so very suspect for pyelonephritis or blood clot. The stone to the left hasn’t gotten into the pelvis yet but its looking at it. My guess is likely pyelo +/- already moved a stone to the ureter and bladder and this is the sequelae. With the smaller rk and this kidney enlarged and hypertrophied then this is likely the more active nephritis/nephrosis and the other one already went through this progression creating the big kidney/little kidney syndrome as periodic inflammatory and obstructive disease occurs and wastes the kidneys over time.
Thank you! Makes sense.