However, if PCN is to be followed by ureteral stent insertion an interpolar calyceal
entry is preferable, so that the vector of pushing forces can be directed toward the ureteropelvic junction.
Along with small calyceal
stones, there was bilateral, quite symmetrical perinephric "rind-like" soft tissue infiltration.
The radiographical and pathological findings suggest that RMC probably originates in the calyceal
epithelium in or near the renal papillae, which could be the result of chronic ischemic damage in the renal papillae epithelium by sickled erythrocytes.
Background: Percutaneous nephrolithotomy (PCNL) is the most widely recommended treatment for calyceal
diverticular calculi, providing excellent stone-free results.
Lower pole calyceal
access was achieved using a modified bull's eye technique, followed by balloon dilation and 30-French sheath insertion.
These foci of various sizes can also be due to mucosal sloughing and accumulation of proteinacious material adjacent to the tips of the renal papillae and calyceal
cups which latter on undergo calcifications, as diabetes is known to cause calcifications at various locations.
2) If singular, this stone is often multifaceted and large--said to be staghorn in shape; but often it can be multiple stones that fragment to fill up and conform to the shape of the renal calyceal
Smith, "Perirenal extravasation with blunt trauma from rupture of a calyceal
fornix," Journal of Trauma, vol.
Whole-cell dialysis of calyceal
terminals with glutamate-free solution decreases the amplitude of EPsCs because of time-dependent glutamate leakage out of vesicles and a use-dependent increase in the number of empty vesicles after recycling (Fig.
diverticulum is a urine filled cavity connected to the renal calyx or the renal pelvis by a narrowed opening.
The kidneys showed calyceal
dilatation of the infundibula or renal pelvis.
For renal stones, the clearance may be influenced by fragmentation, calyceal
anatomy and ureteral clearance.