Staghorn calculi
It is a kidney stone present in any of the calyxes of the kidney.
The plural is calyces or calyxes.
kidney
Renal Sinus receives urine from the calyces.
Actually, major calyces are large funnel-shaped structures in the kidney that collect urine from the minor calyces. They merge to form the renal pelvis, which then connects to the ureter. The renal columns are extensions of the renal cortex that project into the medulla to provide support and contain blood vessels.
Prominence of calyces refers to the visibility or enlargement of the renal calyces on imaging studies, such as ultrasound or CT scans, which can indicate conditions like hydronephrosis (accumulation of urine in the kidneys). Increased prominence may suggest obstruction or dilation of the renal collecting system. Treatment depends on the underlying cause, which may include addressing the obstruction or managing the condition that is contributing to the prominence of the calyces.
There are an equal number of pyramids per kidney as there are minor calyces. ie If there are 8-18 minor calyces per kidney, there will be a matching number of pyramids (8-18). Therefore, if a cat has 12 minor calyces, there will be 12 pyramids as well in that kidney.
calyces
papillary ducts to minor calyces, these join becoming major calyces, these unite to form the renal pelvis, then on to the ureters, urinary bladder, urethra, toilet
renal sinus
pevis
Mild dilatation of the collecting system of the kidney-- calyces and renal pelvis.