It is a kidney stone present in any of the calyxes of the kidney.
kidney
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.
Renal Sinus receives urine from the calyces.
renal sinus
Mild dilatation of the collecting system of the kidney-- calyces and renal pelvis.
The collecting ducts converge to form larger ducts known as papillary ducts. These papillary ducts then empty urine into the renal calyces, which are part of the renal pelvis where urine collects before being drained into the ureters.
2 to 3 in each kidney according to dr qasim dawiri slides :)
A left kidney with mild pelvocaliectasis means that the kidney has a dilated renal pelvis as well as calyces. This can be see through an ultrasound and it curable.
These ducts are tubules and ducts that connect the nephrons to the ureter.
A pelvocalyceal system refers to the structure within the kidney that includes the renal pelvis and calyces. The renal pelvis is a funnel-shaped structure that collects urine from the kidney and connects to the ureter, while the calyces are cup-like structures that collect urine from the kidney tubules.
The calyx or calyces is the part of the kidney where the urine flows through.