ANATOMY

Detailed explanation-1: -Listen to pronunciation. (neh-FROS-toh-mee) Surgery to make an opening from the outside of the body to the renal pelvis (part of the kidney that collects urine). This may be done to drain urine from a blocked kidney or blocked ureter into a bag outside the body.

Detailed explanation-2: -Noun. pyelotomy (plural pyelotomies) (surgery) incision into the renal pelvis of a kidney.

Detailed explanation-3: -In a pyelolithotomy, the stone is accessed through an incision in the renal pelvis (pyelotomy). Once the stone is removed, the pyelotomy is usually closed with sutures, with or without a stent.

Detailed explanation-4: -Pyelolithotomy is a surgical procedure used in cases involving a stone in the renal pelvis. Indications for pyelolithotomy include minimally branched staghorn stones in the renal pelvis of complex collecting systems and excessive morbid obesity.