- pyelostomy
- Formation of an opening into the kidney pelvis to establish urinary drainage. [pyelo- + G. stoma, mouth]
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py·e·los·to·my .pī-(ə-)'läs-tə-mē n, pl -mies the operation of forming an artificial opening in the renal pelvis of a kidney in order to provide a drainage route for urine alternative to the ureter* * *
py·elos·to·my (pi″ə-losґtə-me) [pyelo- + -stomy] a rare procedure in which an opening is surgically created directly into the renal pelvis for temporary urinary diversion, in contrast to the more common nephrostomy.
Medical dictionary. 2011.