n. surgical incision into the pelvis of the kidney. This operation is usually undertaken to remove a stone (see pyelolithotomy) but is also necessary when surgical drainage of the kidney is required by a catheter or tube.
n. surgical removal of a stone from the kidney through an incision made in the pelvis of the kidney. The incision is usually made into the posterior surface of the pelvis (posterior pyelotomy) to gain access to the stone, which can then be lifted clear.... pyelolithotomy
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